Brave-browser: Cannot open links in mail.com emails

[Brave-Matt]

Description

Brave users with mail.com accounts report that opening links from within emails in Brave does not work as intended. Reports claim that when clicked an error code 403 with “Oops, something went wrong” is displayed.

Steps to Reproduce

1. (mail.com account required) Visit mail.com and login
2. Open an email containing hyperlink to external site
3. Click hyperlink

Actual result:

403 error is thrown:

Expected result:

Link should open in a new tab

Reproduces how often:

Brave version (brave://version info)

v0.61.52

Reproducible on current release:

• Does it reproduce on brave-browser dev/beta builds?
  Dev - No
  Beta - Yes

  Website problems only:

• Does the issue resolve itself when disabling Brave Shields? No

• Is the issue reproducible on the latest version of Chrome? No

Additional Information

User reports:
https://community.brave.com/t/mail-com-email-links-not-opening/46898/5
https://community.brave.com/t/opening-links-redirects-from-mail-com-not-working/49873

[rebron]

@Brave-Matt Can you check this in 62.x Release and 63.x Beta?

[Brave-Matt]

@rebron same behavior in both.

[Brave-Matt]

+1 https://community.brave.com/t/email-redirect-not-working-on-web-de-and-gmx-de/43965/7?u=mattches

Extracting console output from report:

[Brave-Matt]

+1 (new users reporting):
https://community.brave.com/t/email-redirect-not-working-on-web-de-and-gmx-de/43965/7?u=mattches

[Brave-Matt]

+1 and Bumping this issue as it seems to be affect a good amount of users. 4 new users reporting this thread: https://community.brave.com/t/email-redirect-not-working-on-web-de-and-gmx-de/43965/11?u=mattches

[ryanbr]

It redirects via this url;

https://deref-mail.com/mail/client/9CBHCt26J7g/dereferrer/?redirectUrl=https%3A%2F%2Fwww.reddit.com

[ryanbr]

Looking at the http response headers, the difference between Brave Nightly and release.

Brave nightly: Redirection url used returns error code (200) (which is good),
Brave release: Redirection url used returns error code (403) (not good),

https://imgur.com/a/syT8APG (not uploaded here to due size)

Seems like something internally changed between builds

[ryanbr]

Re-checked this, Working in Brave release. Safe to close @Brave-Matt ?

[ryanbr]

Closing this, we can re-open if its not resolved. wasn't reproducible