Attach (recommended) or Link to PDF file here: [ar99.pdf](https://github.com/mozilla/pdf.js/files/7086733/ar99.pdf)
https://www.dallasfed.org/fed/~/media/documents/fed/annual/1999/ar99.pdf 

Configuration:
- Web browser and its version: Firefox Browser 72.0.2 (64-bit)
- Operating system and its version: Windows 10 Enterprise version 1809
- PDF.js version: 2.4.152
- Is a browser extension:

Steps to reproduce the problem:
1. Open URL
2. Observe

What is the expected behavior? (add screenshot)
![image](https://user-images.githubusercontent.com/60226822/72994265-6a03c780-3dbc-11ea-8914-42563b321546.png)

What went wrong? (add screenshot)
![image](https://user-images.githubusercontent.com/60226822/72994291-77b94d00-3dbc-11ea-9de2-6214a4d4b361.png)

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

t[307] = 966;
  t[308] = 8215;
  t[309] = 8252;
  t[310] = 8319;
  t[311] = 8359;
  t[312] = 8592;
  t[313] = 8593;
  t[337] = 9552;
  t[493] = 1039;
  t[494] = 1040;
  t[705] = 1524;
  t[706] = 8362;
  t[710] = 64288;
  t[711] = 64298;
  t[759] = 1617;
  t[761] = 1776;
  t[763] = 1778;
  t[775] = 1652;
  t[777] = 1764;
  t[778] = 1780;
  t[779] = 1781;
  t[780] = 1782;
  t[782] = 771;
  t[783] = 64726;
  t[786] = 8363;
  t[788] = 8532;
  t[790] = 768;
  t[791] = 769;
  t[792] = 768;
  t[795] = 803;