Update

Runtime/Plugins/platform/webgl/UIWidgetsCanvasDevicePixelRatio_2019.1.jslib.meta

         Exclude Linux64: 1
         Exclude LinuxUniversal: 1
         Exclude OSXUniversal: 1
-        Exclude WebGL: 1
+        Exclude WebGL: 0
         Exclude Win: 1
         Exclude Win64: 1
         Exclude iOS: 1
   - first:
       WebGL: WebGL
     second:
-      enabled: 0
+      enabled: 1
       settings: {}
   - first:
       iPhone: iOS