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)


},
    
    markPoint: function CanvasGraphics_markPoint(tag) {
      
    },
    markPointProps: function CanvasGraphics_markPointProps(tag, properties) {
      
    },
    beginMarkedContent: function CanvasGraphics_beginMarkedContent(tag) {
      this.markedContentStack.push({
        visible: true,
      });
    },
    beginMarkedContentProps: function CanvasGraphics_beginMarkedContentProps(
      tag,
      properties
    ) {
      if (tag === "OC") {
        this.markedContentStack.push({
          visible: this.optionalContentConfig.isVisible(properties),
        });
      } else {
        this.markedContentStack.push({
          visible: true,
        });
      }
      this.contentVisible = this.isContentVisible();
    },
    endMarkedContent: function CanvasGraphics_endMarkedContent() {
      this.markedContentStack.pop();