File: webGLCanvasContext_makecompatible_contextlost.https.html

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firefox-esr 68.10.0esr-1~deb9u1
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<!DOCTYPE html>
<body>
  <script src=/resources/testharness.js></script>
  <script src=/resources/testharnessreport.js></script>
  <script src="resources/webxr_util.js"></script>
  <canvas id="webgl-canvas"></canvas>
  <script>

    xr_promise_test(
      "A lost webglCanvasContext should not be able to set xr compatibility",
     (t) => {
      return XRTest.simulateDeviceConnection({ supportsImmersive:true })
        .then( (controller) => {
          webglCanvas = document.getElementById('webgl-canvas');
          gl = webglCanvas.getContext('webgl', {xrCompatible: true});
          gl.getExtension('WEBGL_lose_context').loseContext();
          return promise_rejects(t, 'InvalidStateError', gl.makeXRCompatible());
        });
    });

  </script>
</body>