I was wondering if WebGL is considered stable enough to be enabled by default. It makes some PDFs render much faster and it has been off by default for a while now, so we have had quite some time to test it.

If we decide to enable WebGL by default, we should not forget to update https://github.com/mozilla/pdf.js/blob/master/extensions/chromium/preferences_schema.json#L39 as well.

/cc @yurydelendik 
/cc @Snuffleupagus (because IIRC you were testing WebGL too)

return shadow(this, "annotationStorage", new AnnotationStorage());
  }
  destroy() {
    if (this.destroyCapability) {
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    this.destroyed = true;
    this.destroyCapability = createPromiseCapability();
    if (this._passwordCapability) {
      this._passwordCapability.reject(
        new Error("Worker was destroyed during onPassword callback")
      );
    }
    const waitOn = [];
    
    
    for (const page of this.pageCache) {
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