PDF Links will not open, result in "invalid or corrupted" warning

Description of the issue:
Several sites with PDF links result in “Invalid or corrupted PDF file” message instead of displaying or downloading the file.

On left-click, the error message appears beneath a red bar. On right-click to either open in a new tab or page, same. On right-click to download, a small file is downloaded which is also corrupted.

The files all have pdf extensions. The problem is unique to Brave (Chrome, Firefox, and Edge each open and/or download the files without issue).

Steps to Reproduce (add as many as necessary):

Here is an example that is not behind a pay wall

  1. Go to https://www.investecassetmanagement.com/south-africa/professional-investor/en-za/campaign-pages/cautious-managed-fund/
  2. Scroll to Quick Links on the bottom right.
  3. Left- or Right-click any of the PDF links to get the error.

Expected result:
Should open or download the file, but does not.

Reproduces how often:

Brave Version(about:brave):
Version 0.64.77 Chromium: 74.0.3729.169 (Official Build) (64-bit)

Reproducible on current live release (yes/no):

Additional Information:
I deleted all extensions, but still have the issue.

Thank you for your assistance.


Thanks for reaching out to us!
This issue has actually already been fixed and is moving down the release pipeline:

Visiting the site you linked to in our Nightly builds (v0.68.10) and opening a PDF file displays the PDF in browser as intended.

You should see this fix reflected in an update in the near future – appreciate your patience.

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Thanks for reaching out.

We have just finished working on a new way of handling pdf files and I am pleased to inform you that we already fixed this issue. The changes are in our Nightly channel. You can install Nightly channel(0.68.x) and use side by side to Release channel(0.64.77 ) or you can simply wait till the changes are stabilized and propagate to Release channel.

The work has been done under https://github.com/brave/brave-browser/issues/3846.

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Jinx! :slight_smile:

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