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):

};
          }
          let contentLength,
            startPos = position + token.length;
          
          
          
          while (startPos < buffer.length) {
            const endPos = startPos + skipUntil(buffer, startPos, objBytes) + 4;
            contentLength = endPos - position;
            const checkPos = Math.max(endPos - CHECK_CONTENT_LENGTH, startPos);
            const tokenStr = bytesToString(buffer.subarray(checkPos, endPos));
            
            if (endobjRegExp.test(tokenStr)) {
              break;
            } else {
              
              
              const objToken = nestedObjRegExp.exec(tokenStr);
              if (objToken && objToken[1]) {
                warn(
                  'indexObjects: Found new "obj" inside of another "obj", ' +
                    'caused by missing "endobj" -- trying to recover.'
                );
                contentLength -= objToken[1].length;
                break;
              }
            }
            startPos = endPos;
          }