C file and Prefab rig. also fixed issue with half transparent color on empty view on AR mode

Author: De-Panther

Assets/WebGLTemplates/WebXR/index.html

@@ -14,12 +14,6 @@
         if (!UnityLoader.SystemInfo.hasWebGL) {
           unityInstance.popup('Your browser does not support WebGL',
             [{text: 'OK', callback: onerror}]);
-        } else if (['Edge', 'Firefox', 'Chrome', 'Safari'].indexOf(UnityLoader.SystemInfo.browser) == -1 && UnityLoader.SystemInfo.os != 'iOS') {
-          unityInstance.popup([
-            UnityLoader.SystemInfo.os,
-            UnityLoader.SystemInfo.browser,
-            'No support for Unity WebGL content'
-          ].join(' '), [{text: 'OK', callback: onsuccess}]);
         } else {
           onsuccess();
         }

Assets/WebGLTemplates/WebXRFullView/index.html

@@ -15,12 +15,6 @@
         if (!UnityLoader.SystemInfo.hasWebGL) {
           unityInstance.popup('Your browser does not support WebGL',
             [{text: 'OK', callback: onerror}]);
-        } else if (['Edge', 'Firefox', 'Chrome', 'Safari'].indexOf(UnityLoader.SystemInfo.browser) == -1 && UnityLoader.SystemInfo.os != 'iOS') {
-          unityInstance.popup([
-            UnityLoader.SystemInfo.os,
-            UnityLoader.SystemInfo.browser,
-            'No support for Unity WebGL content'
-          ].join(' '), [{text: 'OK', callback: onsuccess}]);
         } else {
           onsuccess();
         }

Assets/WebXR/Plugins/WebGL/webxr.c

@@ -2,9 +2,9 @@
 #include "emscripten.h"
 
 typedef void (*webxr_void)();
-typedef void (*webxr_void_int)();
+typedef void (*webxr_void_int)(int32_t);
 typedef void (*webxr_void_int_float4_float4)(int32_t, float, float, float, float, float, float, float, float);
-typedef void (*webxr_void_string)();
+typedef void (*webxr_void_string)(const char *ptr);
 
 webxr_void_int_float4_float4 on_start_ar_ref;
 webxr_void_int on_start_vr_ref;

Assets/WebXR/Samples/Desert/Prefabs/WebXRCameraSet.prefab

@@ -1889,7 +1889,7 @@ Camera:
   m_GameObject: {fileID: 3250837035476248814}
   m_Enabled: 1
   serializedVersion: 2
-  m_ClearFlags: 3
+  m_ClearFlags: 4
   m_BackGroundColor: {r: 0.19215687, g: 0.3019608, b: 0.4745098, a: 0.019607844}
   m_projectionMatrixMode: 1
   m_GateFitMode: 2
@@ -1963,7 +1963,7 @@ Camera:
   m_GameObject: {fileID: 6032564905858711458}
   m_Enabled: 1
   serializedVersion: 2
-  m_ClearFlags: 3
+  m_ClearFlags: 4
   m_BackGroundColor: {r: 0.19215687, g: 0.3019608, b: 0.4745098, a: 0.019607844}
   m_projectionMatrixMode: 1
   m_GateFitMode: 2

Build/Build/Build.data.unityweb

@@ -14,12 +14,6 @@
         if (!UnityLoader.SystemInfo.hasWebGL) {
           unityInstance.popup('Your browser does not support WebGL',
             [{text: 'OK', callback: onerror}]);
-        } else if (['Edge', 'Firefox', 'Chrome', 'Safari'].indexOf(UnityLoader.SystemInfo.browser) == -1 && UnityLoader.SystemInfo.os != 'iOS') {
-          unityInstance.popup([
-            UnityLoader.SystemInfo.os,
-            UnityLoader.SystemInfo.browser,
-            'No support for Unity WebGL content'
-          ].join(' '), [{text: 'OK', callback: onsuccess}]);
         } else {
           onsuccess();
         }