Update kolibri-zip with support for css import statements, fix browser compatibility#14085
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rtibbles merged 2 commits intolearningequality:release-v0.19.xfrom Feb 10, 2026
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The cssPathRegex was using a lookbehind assertion which is not supported in Safari <16.4 and older JavaScript engines. This change adds a feature detection at module load and provides both modern and legacy implementations that produce identical results. The legacy regex uses alternation to handle quoted and unquoted URLs separately, with proper escape sequence handling for quoted strings. Both implementations are exported via _internal for testing, and tests now run against both versions using jest.each.
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LianaHarris360
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Feb 10, 2026
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Logic looks correct and passing tests cover the behavior, approving!
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Summary
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No open issue, noticed in the process of working on #12805 and browser compatibility testing
Reviewer guidance
I think the test coverage here is sufficient to give assurance, but testing H5Ps on older desktop Safari versions should show the improvement. See the regex look behind caniuse for candidates: https://caniuse.com/js-regexp-lookbehind
Firefox 77 or Safari 16.3 should be old enough!