Brave News Customize window is blank after loading Learn More content in its tab

[stephendonner]

Description

Brave News Customize window is blank after loading Learn More content in its tab

This is a followup from #27052, with different steps.

Steps to Reproduce

1. install 1.49.39
2. launch Brave
3. open a new-tab page
4. scroll down
5. on the Brave News opt-in dialog, click Learn More (this replaces the tab’s content)
6. now click the Back button on the browser
7. click Show Brave News
8. click Customize

Actual result:

Expected result:

Reproduces how often:

100%

Brave version (brave://version info)

Brave	1.49.39 Chromium: 109.0.5414.87 (Official Build) nightly (x86_64)
Revision	2dc18eb511c56e012081b4abc9e38c81c885f7d4-refs/branch-heads/5414@{#1241}
OS	macOS Version 11.7.2 (Build 20G1020)

Version/Channel Information:

• Can you reproduce this issue with the current release?
• Can you reproduce this issue with the beta channel?
• Can you reproduce this issue with the nightly channel?

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields?
• Does the issue resolve itself when disabling Brave Rewards?
• Is the issue reproducible on the latest version of Chrome?

Miscellaneous Information:

/cc @fallaciousreasoning @rebron @mattmcalister @brave/qa-team @petemill

[stephendonner]

Verified PASSED using

Brave	1.50.14 Chromium: 110.0.5481.77 (Official Build) nightly (x86_64)
Revision	65ed616c6e8ee3fe0ad64fe83796c020644d42af-refs/branch-heads/5481@{#839}
OS	macOS Version 11.7.3 (Build 20G1116)

Steps:

1. installed 1.50.14
2. launched Brave
3. opened a new-tab page
4. scrolled down
5. on the Brave News opt-in dialog, clicked Learn More (this replaces the tab’s content)
6. now clicked the Back button on the browser
7. clicked Show Brave News
8. clicked Customize

Confirmed I had a working Brave News Customize dialog

[stephendonner]

@fallaciousreasoning I hit this in 1.49.100 yesterday; think we can get this uplifted?

[fallaciousreasoning]

Good call @stephendonner - uplift request is here:
brave/brave-core#17287

[kjozwiak]

The above requires 1.49.109 or newer for 1.49.x verification 👍 Removing the QA Pass label as this will need to be re-verified on 1.49.x. Used the verification from #27914 (comment) when uplifting brave/brave-core#17287.

[stephendonner]

Verified PASSED using

Brave	1.49.109 Chromium: 110.0.5481.177 (Official Build) beta (x86_64)
Revision	f34f7ab2d4ca4ad498ef42aeba4f4eb2c1392d63-refs/branch-heads/5481@{#1239}
OS	macOS Version 11.7.4 (Build 20G1120)

example	example	example	example	example