fix(settings): detect Chrome on Android correctly in device list

[FaizanKamal7]

Summary

Fixes #50502

Modern Chrome on Android no longer includes the "Build/" string in its user-agent, causing it to be incorrectly identified as "Chrome (Linux)" instead of "Chrome (Android)" in the device list at /settings/user/security.

Problem

The current androidChrome regex pattern requires a Build/ string:

androidChrome: /Android.*(?:; (.*) Build\/).*Chrome\/(\d+)[0-9.]+/,

However, as of 2021, Chrome on Android has reduced its user-agent string and no longer includes the device model and build information.

Current user-agent format:

Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Mobile Safari/537.36

Solution

Updated the androidChrome regex pattern to:

androidChrome: /^Mozilla\/5\.0 \(Linux; Android[^)]+\) AppleWebKit\/[0-9.]+ \(KHTML, like Gecko\) Chrome\/(\d+)[0-9.]+ (?:Mobile )?Safari\/[0-9.]+$/,

This pattern:

• ✅ Matches modern Android Chrome (without Build string)
• ✅ Matches Android Chrome on tablets (without "Mobile")
• ✅ Still matches legacy Android Chrome (with Build string)
• ✅ Correctly extracts Chrome version number
• ✅ Does not incorrectly match desktop Chrome on Linux

Testing

Manual Regex Verification

Tested the new pattern using JavaScript console against the user-agent string reported in #50502:

const pattern = /^Mozilla\/5\.0 \(Linux; Android[^)]+\) AppleWebKit\/[0-9.]+ \(KHTML, like Gecko\) Chrome\/(\d+)[0-9.]+ (?:Mobile )?Safari\/[0-9.]+$/;

// Modern Android Chrome (from issue #50502)
const ua1 = 'Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Mobile Safari/537.36';
const match1 = pattern.exec(ua1);
console.log('Modern Android Chrome - Match:', !!match1); // ✅ true
console.log('Version:', match1[1]); // ✅ "132"

// Android Chrome Tablet
const ua2 = 'Mozilla/5.0 (Linux; Android 13) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36';
const match2 = pattern.exec(ua2);
console.log('Android Tablet - Match:', !!match2); // ✅ true
console.log('Version:', match2[1]); // ✅ "131"

// Legacy Android Chrome with Build
const ua3 = 'Mozilla/5.0 (Linux; Android 10; SM-G973F Build/QP1A) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36';
const match3 = pattern.exec(ua3);
console.log('Legacy Android Chrome - Match:', !!match3); // ✅ true
console.log('Version:', match3[1]); // ✅ "130"

// Desktop Chrome on Linux (should NOT match)
const ua4 = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36';
const match4 = pattern.exec(ua4);
console.log('Desktop Linux Chrome - Match:', !!match4); // ✅ false (correct!)

Results:

• ✅ Modern Android Chrome: correctly detected and version extracted
• ✅ Android Chrome Tablet: correctly detected
• ✅ Legacy Android Chrome: backwards compatible
• ✅ Desktop Chrome on Linux: correctly NOT matched (prevents false positives)

Test Results Summary

• Modern Android Chrome (primary issue): FIXED ✅
• Backwards compatibility with legacy user-agents: MAINTAINED ✅
• No false positives on desktop Chrome: VERIFIED ✅

References

• User-agent reduction documentation: https://developers.google.com/privacy-sandbox/blog/user-agent-reduction-android-model-and-version
• Chromium UA reduction: https://www.chromium.org/updates/ua-reduction/
• Latest Chrome user-agents: https://www.whatismybrowser.com/guides/the-latest-user-agent/chrome

Checklist

• Follows conventional commit format
• Signed-off commit
• Regex pattern tested against reported user-agent
• Backwards compatibility verified
• No false positives on non-Android Chrome

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[provokateurin]

@FaizanKamal7 you don't need to update this branch unless there are conflicts. Also please rebase onto the master branch instead of merging it into this branch.

[FaizanKamal7]

@FaizanKamal7 you don't need to update this branch unless there are conflicts. Also please rebase onto the master branch instead of merging it into this branch.

Noted @provokateurin. I will rebase it instead of updating this branch