Attach (recommended) or Link to PDF file here:
[Test file.pdf](https://github.com/mozilla/pdf.js/files/4656226/Test.file.pdf)

Configuration:
- Web browser and its version: Chrome Version 81.0.4044.138 (Official Build) (64-bit)
- Operating system and its version: Windows 10
- PDF.js version: latest
- Is a browser extension: no

Steps to reproduce the problem:
1. Open [https://mozilla.github.io/pdf.js/web/viewer.html](https://mozilla.github.io/pdf.js/web/viewer.html)
2. Load the provided .pdf file

What is the expected behavior? (add screenshot)
![image](https://user-images.githubusercontent.com/5569382/82438616-02c3fe80-9aa2-11ea-9003-b75ea1e7aac6.png)

What went wrong? (add screenshot)
![image](https://user-images.githubusercontent.com/5569382/82438640-09527600-9aa2-11ea-810b-071da7e37896.png)


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);
          }
          ctx.stroke();
          ctx.restore();
        } else {
          const lineWidth = this.getSinglePixelWidth();
          if (lineWidth < 0 && -lineWidth >= this.current.lineWidth) {
            
            
            ctx.save();
            ctx.resetTransform();
            ctx.lineWidth = Math.round(this._combinedScaleFactor);
            ctx.stroke();
            ctx.restore();
          } else {
            
            ctx.lineWidth = Math.max(lineWidth, this.current.lineWidth);
            ctx.stroke();
          }
        }
      }
      if (consumePath) {