Currently, mediawiki.jqueryMsg doesn't support single HTML tags (tags like <meta> which don't have a closing part):
mw.messages.set( 'test', 'a<br>b' ); mw.message( 'test' ).parse(); // 'a<br>b'
Use of <br> in frontend messages would be handy.
Looking at the code, it doesn't seem super hard to fix, we'd just have to check against the single-tag list when a closing tag is not found.
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Restricted Task | |||||
| Resolved | Security | SomeRandomDeveloper | T407157 CVE-2026-0671: Multiple stored i18n/message-key XSSes in UploadWizard | ||
| Resolved | Feature | SomeRandomDeveloper | T295568 Support single HTML tags in mediawiki.jqueryMsg |
Change #1203448 had a related patch set uploaded (by SomeRandomDeveloper; author: SomeRandomDeveloper):
[mediawiki/core@master] mediawiki.jqueryMsg: Support self-closing HTML tags
To test whether this change breaks anything, I've run core's en.json through jqueryMsg both with and without my patch, and when comparing the two, there were no changes. Meanwhile, <br> and the other two tags now work fine for me.
Code for testing:
(function() { const jQueryParse = function(input, params) { mw.messages.set('foo', input); return mw.message('foo', params).parse(); }; $.getJSON("https://raw.githubusercontent.com/wikimedia/mediawiki/refs/heads/master/languages/i18n/en.json").done((data) => { delete data["@metadata"]; const parsed = {}; for (const [key, value] of Object.entries(data)) { parsed[key] = jQueryParse(value); } console.log(JSON.stringify(parsed)); }); })();
Change #1203448 merged by jenkins-bot:
[mediawiki/core@master] mediawiki.jqueryMsg: Support self-closing HTML tags
(I'm gonna boldly assume that this is done following the patch being merged; please reopen if there's anything left to do! cc @SomeRandomDeveloper)
Change #1210641 had a related patch set uploaded (by SBassett; author: SomeRandomDeveloper):
[mediawiki/core@REL1_45] mediawiki.jqueryMsg: Support self-closing HTML tags
Change #1210641 merged by jenkins-bot:
[mediawiki/core@REL1_45] mediawiki.jqueryMsg: Support self-closing HTML tags
Change #1211251 had a related patch set uploaded (by SomeRandomDeveloper; author: SomeRandomDeveloper):
[mediawiki/core@REL1_45] RELEASE-NOTES-1.45: Add entry for jqueryMsg self-closing tag support
Change #1211251 abandoned by SomeRandomDeveloper:
[mediawiki/core@REL1_45] RELEASE-NOTES-1.45: Add entry for jqueryMsg self-closing tag support
Reason:
wrong branch for the initial patch; will push a new one to master and cherry-pick it to REl1_45 instead
Change #1211258 had a related patch set uploaded (by SomeRandomDeveloper; author: SomeRandomDeveloper):
[mediawiki/core@master] RELEASE-NOTES-1.45: Add entry for jqueryMsg self-closing tag support
Change #1211259 had a related patch set uploaded (by SomeRandomDeveloper; author: SomeRandomDeveloper):
[mediawiki/core@REL1_45] RELEASE-NOTES-1.45: Add entry for jqueryMsg self-closing tag support
Change #1211258 merged by jenkins-bot:
[mediawiki/core@master] RELEASE-NOTES-1.45: Add entry for jqueryMsg self-closing tag support
Change #1211259 merged by jenkins-bot:
[mediawiki/core@REL1_45] RELEASE-NOTES-1.45: Add entry for jqueryMsg self-closing tag support
Change #1216650 had a related patch set uploaded (by Reedy; author: SomeRandomDeveloper):
[mediawiki/core@REL1_44] mediawiki.jqueryMsg: Support self-closing HTML tags
Change #1216651 had a related patch set uploaded (by Reedy; author: SomeRandomDeveloper):
[mediawiki/core@REL1_43] mediawiki.jqueryMsg: Support self-closing HTML tags
Change #1216650 merged by jenkins-bot:
[mediawiki/core@REL1_44] mediawiki.jqueryMsg: Support self-closing HTML tags
Change #1216651 merged by jenkins-bot:
[mediawiki/core@REL1_43] mediawiki.jqueryMsg: Support self-closing HTML tags