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Layout-initiated image loads perform n^2 callbacks #36480
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A-content/imagesInteracting with images from web contentInteracting with images from web contentA-content/scriptRelated to the script threadRelated to the script threadC-has-manual-testcaseC-reproducedI-perf-slowUnnecessary performance degredation.Unnecessary performance degredation.
Description
Describe the bug:
Open bad.html.gz. Let it fully load. Hover over or try to click on a link — no link preview appears and no navigation happens.
Then open good.html.gz and they both work.
These are both equivalent, good.html is smaller (fewer entries), they're both generated from neighbouring directories by https://github.com/thecoshman/http so they're basically identical except for "amount of rows". There's some javascript but none that would affect the links.
Platform:
Reproed with 2025-04-11 binaries from https://servo.org/download/ on Windows 10 and Bookworm.
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A-content/imagesInteracting with images from web contentInteracting with images from web contentA-content/scriptRelated to the script threadRelated to the script threadC-has-manual-testcaseC-reproducedI-perf-slowUnnecessary performance degredation.Unnecessary performance degredation.