iCloud.com on desktop gives "Your browser is not supported" error message

[Brave-Matt]

Description

Visiting iCloud.com in any Brave build at this time lands you on Your browser is not supported error page. Shields up/down do not appear to make a difference, nether does a fresh profile or clearing cache/site data. No errors shown in dev tools console.

Steps to Reproduce

1. Visit https://icloud.com

Reproduces how often:

Always

Brave version (brave://version info)

Version 1.29.81 Chromium: 93.0.4577.82 (Official Build) (x86_64)

Version/Channel Information:

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

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields? No
• Does the issue resolve itself when disabling Brave Rewards? No
• Is the issue reproducible on the latest version of Chrome? No

Miscellaneous Information:

User reports:
https://community.brave.com/t/just-got-your-browser-is-not-supported-from-icloud-com/284365/6
https://old.reddit.com/r/brave_browser/comments/ps03fa/wwwicloudcom_no_longer_works_with_brave/

[ryanbr]

Re-open to confirm the fix is working with everyone.

[andreprawira]

@ryanbr it wasnt working about 3 hours ago, just checked it again, now its working

[ryanbr]

Give it 24hrs @andreprawira

#edit:

1. brave://components/
2. Manually Update Brave Ad Block Updater - Version: 1.0.1070
3. Refresh icloud page.

[Tonev]

@ryanbr

Your fix seems to work. I added icloud.com##+js(aopw, navigator.brave) via brave://adblock and the page no longer tells me my browser is unsupported.

[ryanbr]

Its in the latest adblock brave://components/ just for an update there. No need for a manual filter

[Tonev]

Sure, but your suggestion to manually update the component didn't work, at least for me, so I checked if your fix works by manually entering it via brave://adblock.

Take a look at the Community thread, users are reporting the same issue, although their component is 1.0.1070.

[ryanbr]

Investigating. Will update thread.

[andreprawira]

@ryanbr been 24 hrs, its all good cause i use icloud multiple times a day everyday

[antonok-edm]

This is still not be 100% fixed by the new aopw scriptlet for some users due to a race condition in the cosmetic filter injection code, but I'm preparing a PR with a solution that appears to work reliably.

[valynor]

Still not working here:
-Brave Shields are OFF (except x-site cookies blocked and fingerprinting blocked)
-I use uBlock Origin 1.38.0 instead - just refreshed all filter lists

I can only access icloud.com when I add icloud.com##+js(aopw, navigator.brave) to "My filters" in uBO.

[antonok-edm]

@valynor we're getting the solution from brave/brave-core#10192 into the next hotfix release, which should be coming out later today.

[LaurenWags]

labelling as QA/Blocked until this is uplifted to 1.30.x and an RC is created where it can be tested

[GeetaSarvadnya]

Verification passed on

Brave | 1.30.84 Chromium: 94.0.4606.54 (Official Build) (64-bit)
-- | --
Revision | c8191a1d5cccbf64e8fe7269043f8ace8d74dd05-refs/branch-heads/4606@{#1130}
OS | Windows 10 Version 21H1 (Build 19043.1237)

• Verified using 1.30.84 opening a bunch of new tabs in succession and visiting https://icloud.com doesn't get redirected to https://icloud.com/unsupported_browser
• Verified on Regular, Private and Tor windows

---

Verification passed on

Brave	1.30.84 Chromium: 94.0.4606.54 (Official Build) (64-bit)
Revision	c8191a1d5cccbf64e8fe7269043f8ace8d74dd05-refs/branch-heads/4606@{#1130}
OS	Ubuntu 18.04 LTS

• Verified using 1.30.84 opening a bunch of new tabs in succession and visiting https://icloud.com doesn't get redirected to https://icloud.com/unsupported_browser
• Verified on Regular, Private and Tor windows

Example:

---

Verified PASSED using

Brave	1.30.84 Chromium: 94.0.4606.54 (Official Build) (x86_64)
Revision	c8191a1d5cccbf64e8fe7269043f8ace8d74dd05-refs/branch-heads/4606@{#1130}
OS	macOS Version 11.6 (Build 20G165)

• Verified using 1.30.84 opening a bunch of new tabs in succession and visiting https://icloud.com doesn't get redirected to https://icloud.com/unsupported_browser
• Verified on regular, Private, Guest, and Tor windows

new tab	private window	guest window	Tor window

[srirambv]

Verification passed on Oppo Reno 5 with Android 11 running 1.30.84 x64 build

• Verified test plan from Mitigate scriptlet injection races brave-core#10192
• Verified on both normal tab and private tabs
• Verified quickly opening https://icloud.com doesn't get redirected to https://icloud.com/unsupported_browser

---

Verification passed on Samsung Tab A with Android 10 running 1.30.84 x64 build

• Verified test plan from Mitigate scriptlet injection races brave-core#10192
• Verified on both normal tab and private tabs
• Verified quickly opening https://icloud.com doesn't get redirected to https://icloud.com/unsupported_browser