Web navigation compatibility research


Finding & Fixing Browser Compatibility Bugs

Mozilla's Firefox rendering team engaged us to search for incompatibilities between browsers and the HTML Navigation specification. We uncovered numerous bugs, including a rare one that affected all browsers.


Through our research we uncovered numerous spec bugs and incompatibilities. In addition we found a rare case where all major implementations agreed on incorrect behavior of the target property of Anchor elements. We filed bugs on each browser and submitted new tests web-platform-tests documenting the behavior. Each of the browsers corrected the behavior, and the web platform is more predictable as a result. You can read more of our account on this work at bocoup.com/blog/moving-targets-a-case-study-on-testing-web-standards.

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