diff --git a/deeployer.libsonnet b/deeployer.libsonnet
index d3280ed2..0bbda264 100644
--- a/deeployer.libsonnet
+++ b/deeployer.libsonnet
@@ -101,7 +101,10 @@
       "host": {
         "url": "maps-"+url
       },
-      "ports": [80]
+      "ports": [80],
+      "env": {
+          "FRONT_URL": "https://play-"+url
+      }
     },
     "redis": {
       "image": "redis:6",
diff --git a/docker-compose.single-domain.yaml b/docker-compose.single-domain.yaml
index 52875ce8..14c14e3e 100644
--- a/docker-compose.single-domain.yaml
+++ b/docker-compose.single-domain.yaml
@@ -92,11 +92,12 @@ services:
       - "traefik.http.routers.pusher-ssl.service=pusher"
 
   maps:
-    image: thecodingmachine/nodejs:12-apache
+    image: thecodingmachine/php:8.1-v4-apache-node12
     environment:
       DEBUG_MODE: "$DEBUG_MODE"
       HOST: "0.0.0.0"
       NODE_ENV: development
+      FRONT_URL: http://play.workadventure.localhost
       #APACHE_DOCUMENT_ROOT: dist/
       #APACHE_EXTENSIONS: headers
       #APACHE_EXTENSION_HEADERS: 1
diff --git a/docker-compose.yaml b/docker-compose.yaml
index ed5389c0..3a0e9b7b 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -96,11 +96,12 @@ services:
       - "traefik.http.routers.pusher-ssl.service=pusher"
 
   maps:
-    image: thecodingmachine/nodejs:12-apache
+    image: thecodingmachine/php:8.1-v4-apache-node12
     environment:
       DEBUG_MODE: "$DEBUG_MODE"
       HOST: "0.0.0.0"
       NODE_ENV: development
+      FRONT_URL: http://play.workadventure.localhost
       #APACHE_DOCUMENT_ROOT: dist/
       #APACHE_EXTENSIONS: headers
       #APACHE_EXTENSION_HEADERS: 1
diff --git a/maps/tests/EmbeddedWebsite/website_in_map_script.json b/maps/tests/EmbeddedWebsite/website_in_map_script.json
index 00ce95cb..3b667c11 100644
--- a/maps/tests/EmbeddedWebsite/website_in_map_script.json
+++ b/maps/tests/EmbeddedWebsite/website_in_map_script.json
@@ -12,8 +12,8 @@
                 {
                  "name":"openWebsite",
                  "type":"string",
-                 "value":"website_in_map_script.html"
-                }, 
+                 "value":"website_in_map_script.php"
+                },
                 {
                  "name":"openWebsiteAllowApi",
                  "type":"bool",
@@ -24,7 +24,7 @@
          "width":30,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
          "height":30,
@@ -36,7 +36,7 @@
          "width":30,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "draworder":"topdown",
          "id":3,
@@ -90,4 +90,4 @@
  "type":"map",
  "version":1.5,
  "width":30
-}
\ No newline at end of file
+}
diff --git a/maps/tests/EmbeddedWebsite/website_in_map_script.html b/maps/tests/EmbeddedWebsite/website_in_map_script.php
similarity index 89%
rename from maps/tests/EmbeddedWebsite/website_in_map_script.html
rename to maps/tests/EmbeddedWebsite/website_in_map_script.php
index 1180a2de..c822b8ca 100644
--- a/maps/tests/EmbeddedWebsite/website_in_map_script.html
+++ b/maps/tests/EmbeddedWebsite/website_in_map_script.php
@@ -1,12 +1,8 @@
 <!doctype html>
 <html lang="en">
 <head>
+    <script src="<?php echo $_SERVER["FRONT_URL"] ?>/iframe_api.js"></script>
     <script>
-        var script = document.createElement('script');
-        // Don't do this at home kids! The "document.referrer" part is actually inserting a XSS security.
-        // We are OK in this precise case because the HTML page is hosted on the "maps" domain that contains only static files.
-        script.setAttribute('src', document.referrer + 'iframe_api.js');
-        document.head.appendChild(script);
         window.addEventListener('load', () => {
             console.log('On load');
             WA.onInit().then(() => {
diff --git a/maps/tests/Metadata/cowebsiteAllowApi.html b/maps/tests/Metadata/cowebsiteAllowApi.html
deleted file mode 100644
index a689fe31..00000000
--- a/maps/tests/Metadata/cowebsiteAllowApi.html
+++ /dev/null
@@ -1,18 +0,0 @@
-<!doctype html>
-<html lang="en">
-    <head>
-        <script>
-            var script = document.createElement('script');
-            // Don't do this at home kids! The "document.referrer" part is actually inserting a XSS security.
-            // We are OK in this precise case because the HTML page is hosted on the "maps" domain that contains only static files.
-            script.setAttribute('src', document.referrer + 'iframe_api.js');
-            document.head.appendChild(script);
-            window.addEventListener('load', () => {
-                WA.chat.sendChatMessage('The iframe opened by a script works !', 'Mr Robot');
-            })
-        </script>
-    </head>
-    <body>
-        <p>Website opened by script.</p>
-    </body>
-</html>
diff --git a/maps/tests/Metadata/cowebsiteAllowApi.js b/maps/tests/Metadata/cowebsiteAllowApi.js
index 56c7b767..aa2ad5a9 100644
--- a/maps/tests/Metadata/cowebsiteAllowApi.js
+++ b/maps/tests/Metadata/cowebsiteAllowApi.js
@@ -1 +1 @@
-WA.nav.openCoWebSite("cowebsiteAllowApi.html", true, "");
+WA.nav.openCoWebSite("cowebsiteAllowApi.php", true, "");
diff --git a/maps/tests/Metadata/cowebsiteAllowApi.php b/maps/tests/Metadata/cowebsiteAllowApi.php
new file mode 100644
index 00000000..c3d1ddff
--- /dev/null
+++ b/maps/tests/Metadata/cowebsiteAllowApi.php
@@ -0,0 +1,14 @@
+<!doctype html>
+<html lang="en">
+    <head>
+        <script src="<?php echo $_SERVER["FRONT_URL"] ?>/iframe_api.js"></script>
+        <script>
+            window.addEventListener('load', () => {
+                WA.chat.sendChatMessage('The iframe opened by a script works !', 'Mr Robot');
+            })
+        </script>
+    </head>
+    <body>
+        <p>Website opened by script.</p>
+    </body>
+</html>
diff --git a/maps/tests/Metadata/customIframeMenuApi.html b/maps/tests/Metadata/customIframeMenuApi.html
deleted file mode 100644
index afe840cc..00000000
--- a/maps/tests/Metadata/customIframeMenuApi.html
+++ /dev/null
@@ -1,20 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-    <meta charset="UTF-8">
-    <title>API in iframe menu</title>
-  <script>
-    var script = document.createElement('script');
-    // Don't do this at home kids! The "document.referrer" part is actually inserting a XSS security.
-    // We are OK in this precise case because the HTML page is hosted on the "maps" domain that contains only static files.
-    script.setAttribute('src', document.referrer + 'iframe_api.js');
-    document.head.appendChild(script);
-    window.addEventListener('load', () => {
-      WA.chat.sendChatMessage('The iframe opened by a script works !', 'Mr Robot');
-    })
-  </script>
-</head>
-<body style="text-align: center">
-    <p style="color: whitesmoke">This is an iframe in a custom menu.</p>
-</body>
-</html>
\ No newline at end of file
diff --git a/maps/tests/Metadata/customIframeMenuApi.php b/maps/tests/Metadata/customIframeMenuApi.php
new file mode 100644
index 00000000..977c36d1
--- /dev/null
+++ b/maps/tests/Metadata/customIframeMenuApi.php
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>API in iframe menu</title>
+    <script src="<?php echo $_SERVER["FRONT_URL"] ?>/iframe_api.js"></script>
+    <script>
+    window.addEventListener('load', () => {
+      WA.chat.sendChatMessage('The iframe opened by a script works !', 'Mr Robot');
+    })
+    </script>
+</head>
+<body style="text-align: center">
+    <p style="color: whitesmoke">This is an iframe in a custom menu.</p>
+</body>
+</html>
diff --git a/maps/tests/Metadata/customMenu.html b/maps/tests/Metadata/customMenu.html
deleted file mode 100644
index 4b38f0b9..00000000
--- a/maps/tests/Metadata/customMenu.html
+++ /dev/null
@@ -1,18 +0,0 @@
-<!doctype html>
-<html lang="en">
-<head>
-    <script>
-        var script = document.createElement('script');
-        // Don't do this at home kids! The "document.referrer" part is actually inserting a XSS security.
-        // We are OK in this precise case because the HTML page is hosted on the "maps" domain that contains only static files.
-        script.setAttribute('src', document.referrer + 'iframe_api.js');
-        document.head.appendChild(script);
-        window.addEventListener('load', () => {
-            WA.ui.registerMenuCommand('test', 'customIframeMenu.html', {autoClose: true});
-        })
-    </script>
-</head>
-<body>
-    <p>Add a custom menu</p>
-</body>
-</html>
\ No newline at end of file
diff --git a/maps/tests/Metadata/customMenu.js b/maps/tests/Metadata/customMenu.js
index ba66ee0d..7cedb632 100644
--- a/maps/tests/Metadata/customMenu.js
+++ b/maps/tests/Metadata/customMenu.js
@@ -7,9 +7,9 @@ WA.ui.registerMenuCommand('custom callback menu', () => {
 WA.ui.registerMenuCommand('custom iframe menu', {iframe: 'customIframeMenu.html'});
 
 WA.room.onEnterZone('iframeMenu', () => {
-    menuIframeApi = WA.ui.registerMenuCommand('IFRAME USE API', {iframe: 'customIframeMenuApi.html', allowApi: true});
+    menuIframeApi = WA.ui.registerMenuCommand('IFRAME USE API', {iframe: 'customIframeMenuApi.php', allowApi: true});
 })
 
 WA.room.onLeaveZone('iframeMenu', () => {
     menuIframeApi.remove();
-})
\ No newline at end of file
+})
diff --git a/maps/tests/Metadata/customMenu.json b/maps/tests/Metadata/customMenu.json
index c107aaf2..fdb69168 100644
--- a/maps/tests/Metadata/customMenu.json
+++ b/maps/tests/Metadata/customMenu.json
@@ -54,7 +54,7 @@
         {
           "name":"openWebsite",
           "type":"string",
-          "value":"customMenu.html"
+          "value":"customMenu.php"
         },
         {
           "name":"openWebsiteAllowApi",
@@ -97,4 +97,4 @@
   "type":"map",
   "version":"1.6",
   "width":10
-}
\ No newline at end of file
+}
diff --git a/maps/tests/Metadata/customMenu.php b/maps/tests/Metadata/customMenu.php
new file mode 100644
index 00000000..68205085
--- /dev/null
+++ b/maps/tests/Metadata/customMenu.php
@@ -0,0 +1,14 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <script src="<?php echo $_SERVER["FRONT_URL"] ?>/iframe_api.js"></script>
+    <script>
+        window.addEventListener('load', () => {
+            WA.ui.registerMenuCommand('test', 'customIframeMenu.html', {autoClose: true});
+        })
+    </script>
+</head>
+<body>
+    <p>Add a custom menu</p>
+</body>
+</html>
diff --git a/maps/tests/Metadata/playerMove.html b/maps/tests/Metadata/playerMove.html
deleted file mode 100644
index 46a36845..00000000
--- a/maps/tests/Metadata/playerMove.html
+++ /dev/null
@@ -1,18 +0,0 @@
-<!doctype html>
-<html lang="en">
-    <head>
-        <script>
-            var script = document.createElement('script');
-            // Don't do this at home kids! The "document.referrer" part is actually inserting a XSS security.
-            // We are OK in this precise case because the HTML page is hosted on the "maps" domain that contains only static files.
-            script.setAttribute('src', document.referrer + 'iframe_api.js');
-            document.head.appendChild(script);
-            window.addEventListener('load', () => {
-                WA.player.onPlayerMove(console.log);
-            })
-        </script>
-    </head>
-    <body>
-        <p>Log in the console the movement of the current player in the zone of the iframe</p>
-    </body>
-</html>
\ No newline at end of file
diff --git a/maps/tests/Metadata/playerMove.json b/maps/tests/Metadata/playerMove.json
index db590b05..109c78c0 100644
--- a/maps/tests/Metadata/playerMove.json
+++ b/maps/tests/Metadata/playerMove.json
@@ -13,7 +13,7 @@
          "width":10,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "data":[33, 34, 34, 34, 34, 34, 34, 34, 34, 35, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 49, 50, 50, 50, 50, 50, 50, 50, 50, 51],
          "height":10,
@@ -25,7 +25,7 @@
          "width":10,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "data":[0, 0, 0, 128, 128, 128, 128, 128, 128, 128, 0, 0, 0, 128, 128, 128, 128, 128, 128, 128, 0, 0, 0, 128, 128, 128, 128, 128, 128, 128, 0, 0, 0, 128, 128, 128, 128, 128, 128, 128, 0, 0, 0, 128, 128, 128, 128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
          "height":10,
@@ -36,8 +36,8 @@
                 {
                  "name":"openWebsite",
                  "type":"string",
-                 "value":"playerMove.html"
-                }, 
+                 "value":"playerMove.php"
+                },
                 {
                  "name":"openWebsiteAllowApi",
                  "type":"bool",
@@ -48,7 +48,7 @@
          "width":10,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "draworder":"topdown",
          "id":5,
@@ -105,7 +105,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":1,
                  "properties":[
@@ -114,7 +114,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":2,
                  "properties":[
@@ -123,7 +123,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":3,
                  "properties":[
@@ -132,7 +132,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":4,
                  "properties":[
@@ -141,7 +141,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":8,
                  "properties":[
@@ -150,7 +150,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":9,
                  "properties":[
@@ -159,7 +159,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":10,
                  "properties":[
@@ -168,7 +168,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":11,
                  "properties":[
@@ -177,7 +177,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":12,
                  "properties":[
@@ -186,7 +186,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":16,
                  "properties":[
@@ -195,7 +195,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":17,
                  "properties":[
@@ -204,7 +204,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":18,
                  "properties":[
@@ -213,7 +213,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":19,
                  "properties":[
@@ -222,7 +222,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":20,
                  "properties":[
@@ -233,7 +233,7 @@
                         }]
                 }],
          "tilewidth":32
-        }, 
+        },
         {
          "columns":8,
          "firstgid":65,
@@ -251,4 +251,4 @@
  "type":"map",
  "version":1.4,
  "width":10
-}
\ No newline at end of file
+}
diff --git a/maps/tests/Metadata/playerMove.php b/maps/tests/Metadata/playerMove.php
new file mode 100644
index 00000000..a9cf0495
--- /dev/null
+++ b/maps/tests/Metadata/playerMove.php
@@ -0,0 +1,14 @@
+<!doctype html>
+<html lang="en">
+    <head>
+        <script src="<?php echo $_SERVER["FRONT_URL"] ?>/iframe_api.js"></script>
+        <script>
+            window.addEventListener('load', () => {
+                WA.player.onPlayerMove(console.log);
+            })
+        </script>
+    </head>
+    <body>
+        <p>Log in the console the movement of the current player in the zone of the iframe</p>
+    </body>
+</html>
diff --git a/maps/tests/Metadata/setProperty.json b/maps/tests/Metadata/setProperty.json
index 06addc2f..db6087bb 100644
--- a/maps/tests/Metadata/setProperty.json
+++ b/maps/tests/Metadata/setProperty.json
@@ -13,7 +13,7 @@
          "width":10,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "data":[33, 34, 34, 34, 34, 34, 34, 34, 34, 35, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 49, 50, 50, 50, 50, 50, 50, 50, 50, 51],
          "height":10,
@@ -25,7 +25,7 @@
          "width":10,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "data":[0, 0, 0, 0, 0, 0, 128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
          "height":10,
@@ -36,8 +36,8 @@
                 {
                  "name":"openWebsite",
                  "type":"string",
-                 "value":"setProperty.html"
-                }, 
+                 "value":"setProperty.php"
+                },
                 {
                  "name":"openWebsiteAllowApi",
                  "type":"bool",
@@ -48,7 +48,7 @@
          "width":10,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 101, 101, 101, 101, 101, 0, 0, 0, 0, 0, 101, 101, 101, 101, 101, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
          "height":10,
@@ -60,7 +60,7 @@
          "width":10,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "draworder":"topdown",
          "id":5,
@@ -117,7 +117,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":1,
                  "properties":[
@@ -126,7 +126,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":2,
                  "properties":[
@@ -135,7 +135,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":3,
                  "properties":[
@@ -144,7 +144,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":4,
                  "properties":[
@@ -153,7 +153,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":8,
                  "properties":[
@@ -162,7 +162,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":9,
                  "properties":[
@@ -171,7 +171,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":10,
                  "properties":[
@@ -180,7 +180,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":11,
                  "properties":[
@@ -189,7 +189,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":12,
                  "properties":[
@@ -198,7 +198,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":16,
                  "properties":[
@@ -207,7 +207,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":17,
                  "properties":[
@@ -216,7 +216,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":18,
                  "properties":[
@@ -225,7 +225,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":19,
                  "properties":[
@@ -234,7 +234,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":20,
                  "properties":[
@@ -245,7 +245,7 @@
                         }]
                 }],
          "tilewidth":32
-        }, 
+        },
         {
          "columns":8,
          "firstgid":65,
@@ -263,4 +263,4 @@
  "type":"map",
  "version":1.4,
  "width":10
-}
\ No newline at end of file
+}
diff --git a/maps/tests/Metadata/setProperty.html b/maps/tests/Metadata/setProperty.php
similarity index 52%
rename from maps/tests/Metadata/setProperty.html
rename to maps/tests/Metadata/setProperty.php
index c61aa5fa..f23504f1 100644
--- a/maps/tests/Metadata/setProperty.html
+++ b/maps/tests/Metadata/setProperty.php
@@ -1,12 +1,8 @@
 <!doctype html>
 <html lang="en">
     <head>
+        <script src="<?php echo $_SERVER["FRONT_URL"] ?>/iframe_api.js"></script>
         <script>
-            var script = document.createElement('script');
-            // Don't do this at home kids! The "document.referrer" part is actually inserting a XSS security.
-            // We are OK in this precise case because the HTML page is hosted on the "maps" domain that contains only static files.
-            script.setAttribute('src', document.referrer + 'iframe_api.js');
-            document.head.appendChild(script);
             window.addEventListener('load', () => {
                 WA.room.setProperty('iframeTest', 'openWebsite', 'https://www.wikipedia.org/');
                 WA.room.setProperty('metadata', 'openWebsite', 'https://www.wikipedia.org/');
@@ -16,4 +12,4 @@
     <body>
         <p>Change the url of this iframe and add the 'openWebsite' property to the red tile layer</p>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/maps/tests/Metadata/setTiles.html b/maps/tests/Metadata/setTiles.html
index 90b5a84d..0fb47f8b 100644
--- a/maps/tests/Metadata/setTiles.html
+++ b/maps/tests/Metadata/setTiles.html
@@ -1,12 +1,8 @@
 <!doctype html>
 <html lang="en">
     <head>
+        <script src="<?php echo $_SERVER["FRONT_URL"] ?>/iframe_api.js"></script>
         <script>
-            var script = document.createElement('script');
-            // Don't do this at home kids! The "document.referrer" part is actually inserting a XSS security.
-            // We are OK in this precise case because the HTML page is hosted on the "maps" domain that contains only static files.
-            script.setAttribute('src', document.referrer + 'iframe_api.js');
-            document.head.appendChild(script);
 
             window.addEventListener('load', () => {
                 WA.room.setTiles([
diff --git a/maps/tests/Metadata/setTiles.json b/maps/tests/Metadata/setTiles.json
index 7eb9791a..f0baefa3 100644
--- a/maps/tests/Metadata/setTiles.json
+++ b/maps/tests/Metadata/setTiles.json
@@ -43,7 +43,7 @@
                 {
                  "name":"openWebsite",
                  "type":"string",
-                 "value":"setTiles.html"
+                 "value":"setTiles.php"
                 },
                 {
                  "name":"openWebsiteAllowApi",
diff --git a/maps/tests/Metadata/showHideLayer.html b/maps/tests/Metadata/showHideLayer.html
index c6103722..c5fd1880 100644
--- a/maps/tests/Metadata/showHideLayer.html
+++ b/maps/tests/Metadata/showHideLayer.html
@@ -1,12 +1,8 @@
 <!doctype html>
 <html lang="en">
     <head>
+        <script src="<?php echo $_SERVER["FRONT_URL"] ?>/iframe_api.js"></script>
         <script>
-            var script = document.createElement('script');
-            // Don't do this at home kids! The "document.referrer" part is actually inserting a XSS security.
-            // We are OK in this precise case because the HTML page is hosted on the "maps" domain that contains only static files.
-            script.setAttribute('src', document.referrer + 'iframe_api.js');
-            document.head.appendChild(script);
             window.addEventListener('load', () => {
                 document.getElementById('show/hideLayer').onclick = () => {
                     if (document.getElementById('show/hideLayer').checked) {
@@ -24,4 +20,4 @@
             <label for="show/hideLayer">Crysal Layer : </label><input type="checkbox" id="show/hideLayer" name="visible" value="show" checked>
         </div>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/maps/tests/Metadata/showHideLayer.json b/maps/tests/Metadata/showHideLayer.json
index df61a655..4419979c 100644
--- a/maps/tests/Metadata/showHideLayer.json
+++ b/maps/tests/Metadata/showHideLayer.json
@@ -13,7 +13,7 @@
          "width":10,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "data":[33, 34, 34, 34, 34, 34, 34, 34, 34, 35, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 41, 42, 42, 42, 42, 42, 42, 42, 42, 43, 49, 50, 50, 50, 50, 50, 50, 50, 50, 51],
          "height":10,
@@ -25,7 +25,7 @@
          "width":10,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "data":[22, 0, 0, 0, 22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 22, 0, 0, 0, 0, 0, 22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 22, 0, 0, 22, 0, 0, 22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
          "height":10,
@@ -37,7 +37,7 @@
          "width":10,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "data":[0, 0, 0, 0, 0, 0, 128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
          "height":10,
@@ -48,8 +48,8 @@
                 {
                  "name":"openWebsite",
                  "type":"string",
-                 "value":"showHideLayer.html"
-                }, 
+                 "value":"showHideLayer.php"
+                },
                 {
                  "name":"openWebsiteAllowApi",
                  "type":"bool",
@@ -60,7 +60,7 @@
          "width":10,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "draworder":"topdown",
          "id":5,
@@ -117,7 +117,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":1,
                  "properties":[
@@ -126,7 +126,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":2,
                  "properties":[
@@ -135,7 +135,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":3,
                  "properties":[
@@ -144,7 +144,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":4,
                  "properties":[
@@ -153,7 +153,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":8,
                  "properties":[
@@ -162,7 +162,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":9,
                  "properties":[
@@ -171,7 +171,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":10,
                  "properties":[
@@ -180,7 +180,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":11,
                  "properties":[
@@ -189,7 +189,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":12,
                  "properties":[
@@ -198,7 +198,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":16,
                  "properties":[
@@ -207,7 +207,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":17,
                  "properties":[
@@ -216,7 +216,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":18,
                  "properties":[
@@ -225,7 +225,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":19,
                  "properties":[
@@ -234,7 +234,7 @@
                          "type":"bool",
                          "value":true
                         }]
-                }, 
+                },
                 {
                  "id":20,
                  "properties":[
@@ -245,7 +245,7 @@
                         }]
                 }],
          "tilewidth":32
-        }, 
+        },
         {
          "columns":8,
          "firstgid":65,
@@ -263,4 +263,4 @@
  "type":"map",
  "version":1.4,
  "width":10
-}
\ No newline at end of file
+}
diff --git a/maps/tests/Variables/shared_variables.json b/maps/tests/Variables/shared_variables.json
index 2de5e4c0..9b457f01 100644
--- a/maps/tests/Variables/shared_variables.json
+++ b/maps/tests/Variables/shared_variables.json
@@ -12,8 +12,8 @@
                 {
                  "name":"openWebsite",
                  "type":"string",
-                 "value":"shared_variables.html"
-                }, 
+                 "value":"shared_variables.php"
+                },
                 {
                  "name":"openWebsiteAllowApi",
                  "type":"bool",
@@ -24,7 +24,7 @@
          "width":10,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
          "height":10,
@@ -36,7 +36,7 @@
          "width":10,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "draworder":"topdown",
          "id":3,
@@ -59,7 +59,7 @@
                  "width":252.4375,
                  "x":2.78125,
                  "y":2.5
-                }, 
+                },
                 {
                  "height":0,
                  "id":5,
@@ -70,22 +70,22 @@
                          "name":"default",
                          "type":"string",
                          "value":"default value"
-                        }, 
+                        },
                         {
                          "name":"jsonSchema",
                          "type":"string",
                          "value":"{}"
-                        }, 
+                        },
                         {
                          "name":"persist",
                          "type":"bool",
                          "value":true
-                        }, 
+                        },
                         {
                          "name":"readableBy",
                          "type":"string",
                          "value":""
-                        }, 
+                        },
                         {
                          "name":"writableBy",
                          "type":"string",
@@ -128,4 +128,4 @@
  "type":"map",
  "version":1.5,
  "width":10
-}
\ No newline at end of file
+}
diff --git a/maps/tests/Variables/shared_variables.html b/maps/tests/Variables/shared_variables.php
similarity index 78%
rename from maps/tests/Variables/shared_variables.html
rename to maps/tests/Variables/shared_variables.php
index 21e0b998..ebeade5b 100644
--- a/maps/tests/Variables/shared_variables.html
+++ b/maps/tests/Variables/shared_variables.php
@@ -1,12 +1,8 @@
 <!doctype html>
 <html lang="en">
 <head>
+    <script src="<?php echo $_SERVER["FRONT_URL"] ?>/iframe_api.js"></script>
     <script>
-        var script = document.createElement('script');
-        // Don't do this at home kids! The "document.referrer" part is actually inserting a XSS security.
-        // We are OK in this precise case because the HTML page is hosted on the "maps" domain that contains only static files.
-        script.setAttribute('src', document.referrer + 'iframe_api.js');
-        document.head.appendChild(script);
         window.addEventListener('load', () => {
             console.log('On load');
             WA.onInit().then(() => {
diff --git a/maps/tests/iframe.html b/maps/tests/iframe.php
similarity index 61%
rename from maps/tests/iframe.html
rename to maps/tests/iframe.php
index 038874b6..0c97c359 100644
--- a/maps/tests/iframe.html
+++ b/maps/tests/iframe.php
@@ -1,13 +1,7 @@
 <!doctype html>
 <html lang="en">
     <head>
-        <script>
-            var script = document.createElement('script');
-            // Don't do this at home kids! The "document.referrer" part is actually inserting a XSS security.
-            // We are OK in this precise case because the HTML page is hosted on the "maps" domain that contains only static files.
-            script.setAttribute('src', document.referrer + 'iframe_api.js');
-            document.head.appendChild(script);
-        </script>
+        <script src="<?php echo $_SERVER["FRONT_URL"] ?>/iframe_api.js"></script>
     </head>
     <body>
         <button id="sendchat">Send chat message</button>
diff --git a/maps/tests/iframe_api.json b/maps/tests/iframe_api.json
index db840b3f..11f2202b 100644
--- a/maps/tests/iframe_api.json
+++ b/maps/tests/iframe_api.json
@@ -20,7 +20,7 @@
          "width":10,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
          "height":10,
@@ -32,7 +32,7 @@
          "width":10,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 34, 34, 34, 34, 34, 0, 0, 0, 0, 0, 34, 34, 34, 34, 34, 0, 0, 0, 0, 0, 34, 34, 34, 34, 34, 0, 0, 0, 0, 0, 34, 34, 34, 34, 34, 0, 0, 0, 0, 0, 34, 34, 34, 34, 34, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
          "height":10,
@@ -43,8 +43,8 @@
                 {
                  "name":"openWebsite",
                  "type":"string",
-                 "value":"iframe.html"
-                }, 
+                 "value":"iframe.php"
+                },
                 {
                  "name":"openWebsiteAllowApi",
                  "type":"bool",
@@ -55,7 +55,7 @@
          "width":10,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "data":[0, 0, 93, 0, 104, 0, 0, 0, 0, 0, 0, 0, 104, 0, 115, 0, 0, 0, 93, 0, 0, 0, 115, 0, 0, 0, 93, 0, 104, 0, 0, 0, 0, 0, 0, 0, 104, 0, 115, 93, 0, 0, 0, 0, 0, 0, 115, 0, 0, 104, 0, 0, 0, 0, 0, 0, 0, 0, 0, 115, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
          "height":10,
@@ -67,7 +67,7 @@
          "width":10,
          "x":0,
          "y":0
-        }, 
+        },
         {
          "draworder":"topdown",
          "id":3,
@@ -121,4 +121,4 @@
  "type":"map",
  "version":1.4,
  "width":10
-}
\ No newline at end of file
+}