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)

this.ctx.closePath();
    }
    stroke(consumePath) {
      consumePath = typeof consumePath !== "undefined" ? consumePath : true;
      const ctx = this.ctx;
      const strokeColor = this.current.strokeColor;
      
      
      ctx.globalAlpha = this.current.strokeAlpha;
      if (this.contentVisible) {
        if (typeof strokeColor === "object" && strokeColor?.getPattern) {
          
          
          ctx.save();
          
          
          
          
          const transform = ctx.mozCurrentTransform;
          const scale = Util.singularValueDecompose2dScale(transform)[0];
          ctx.strokeStyle = strokeColor.getPattern(ctx, this);
          const lineWidth = this.getSinglePixelWidth();
          const scaledLineWidth = this.current.lineWidth * scale;
          if (lineWidth < 0 && -lineWidth >= scaledLineWidth) {
            ctx.resetTransform();
            ctx.lineWidth = Math.round(this._combinedScaleFactor);
          } else {
            ctx.lineWidth = Math.max(lineWidth, scaledLineWidth);
          }