Attach (recommended) or Link to PDF file here:  [test.pdf](https://akmer.aikucun.com/a94a8fe5ccb19ba61c4c0873d391e987982fbbd3_1616477914120_83.pdf)


Configuration:
- Web browser and its version: chrome 87.0.4280.88
- Operating system and its version: windows10
- PDF.js version: 2.6.347
- Is a browser extension:

Steps to reproduce the problem:
1. just open 

What is the expected behavior? (add screenshot)

What went wrong? (add screenshot)
![image](https://user-images.githubusercontent.com/17724610/112087066-473f8f80-8bc8-11eb-8efb-56139ec42a9c.png)

Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension):

r = kids.length - 1;
      while (l <= r) {
        const m = (l + r) >> 1;
        const kid = xref.fetchIfRef(kids[m]);
        const limits = kid.get("Limits");
        if (key < xref.fetchIfRef(limits[0])) {
          r = m - 1;
        } else if (key > xref.fetchIfRef(limits[1])) {
          l = m + 1;
        } else {
          kidsOrEntries = xref.fetchIfRef(kids[m]);
          break;
        }
      }
      if (l > r) {
        return null;
      }
    }
    
    
    const entries = kidsOrEntries.get(this._type);
    if (Array.isArray(entries)) {
      
      let l = 0,
        r = entries.length - 2;
      while (l <= r) {
        
        
        const tmp = (l + r) >> 1,
          m = tmp + (tmp & 1);