Fix an issue where right eye view is defined in iOS Mozilla WebXR Viewer.

Author: De-Panther

Packages/webxr/Runtime/Plugins/WebGL/webxr.jspre

@@ -1015,7 +1015,7 @@ setTimeout(function () {
                 leftRect.w = (viewport.width / glLayer.framebufferWidth) * (glLayer.framebufferWidth / this.canvas.width);
                 leftRect.h = (viewport.height / glLayer.framebufferHeight) * (glLayer.framebufferHeight / this.canvas.height);
               }
-            } else if (view.eye === 'right' && viewport.width != 0 && viewport.height != 0) {
+            } else if (view.eye === 'right' && viewport.width != 0 && viewport.height != 0 && viewport.x != 0) { // Ugly hack for iOS Mozilla WebXR Viewer
               eyeCount = 2;
               if (viewport) {
                 rightRect.x = (viewport.x / glLayer.framebufferWidth) * (glLayer.framebufferWidth / this.canvas.width);