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WPT

This page compares scores on the Web Platform Tests across web engines, using the latest master runs from wpt.fyi and Blitz's own test runner.


wpt / FileAPI / reading-data-section

Spec: File API ↗

Runs: Chrome 158.0.8110.0 (wpt@850b36a56, 2026-10-18) | Firefox 160.0a1 (wpt@b58866519, 2026-10-18) | Safari 254 preview (wpt@470a7adf8, 2026-10-18) | Ladybird 1.0-e7b21 (wpt@850b36a56, 2026-10-18) | Servo Servo 0.7 (wpt@df642c414, 2026-10-17) | Blitz fb8d6c15e (wpt@cd1d8aa5b, 2026-10-17)

Score history

Percentage of subtests passing over time, one master run per day. Every engine's percentage is relative to the same denominator: the total number of subtests known to any engine in the latest runs (so lines are not distorted by tests being added to WPT, and an engine that skips tests is not flattered for it).

1 month3 months6 months1 year2 years4 yearsAll time
0%20%40%60%80%100%Nov 2025Dec 2025Jan 2026Feb 2026Mar 2026Apr 2026May 2026Jun 2026Jul 2026Aug 2026Sep 2026Oct 2026ChromeFirefoxSafariLadybirdServo

Sort: alphabetical | by subtest count

AreaChromeFirefoxSafariLadybirdServoBlitz
Total96.0%97/10196.0%97/10196.0%97/101100.0%101/10198.0%99/1010.0%0/101
TestChromeFirefoxSafariLadybirdServoBlitz
Total96.0%97/10196.0%97/10196.0%97/101100.0%101/10198.0%99/101NO DATA
Determining-Encoding.any.html6/66/66/66/66/6NOT RUN
Determining-Encoding.any.worker.html6/66/66/66/66/6NOT RUN
FileReader-event-handler-attributes.any.html6/66/66/66/66/6NOT RUN
FileReader-event-handler-attributes.any.worker.html6/66/66/66/66/6NOT RUN
FileReader-multiple-reads.any.html8/86/86/88/87/8NOT RUN
FileReader-multiple-reads.any.worker.html8/86/86/88/87/8NOT RUN
filereader_abort.any.html3/33/33/33/33/3NOT RUN
filereader_abort.any.worker.html3/33/33/33/33/3NOT RUN
filereader_error.any.htmlPASSPASSPASSPASSPASSNOT RUN
filereader_error.any.worker.htmlPASSPASSPASSPASSPASSNOT RUN
filereader_events.any.html2/22/22/22/22/2NOT RUN
filereader_events.any.worker.html2/22/22/22/22/2NOT RUN
filereader_readAsArrayBuffer.any.htmlPASSPASSPASSPASSPASSNOT RUN
filereader_readAsArrayBuffer.any.worker.htmlPASSPASSPASSPASSPASSNOT RUN
filereader_readAsBinaryString.any.htmlPASSPASSPASSPASSPASSNOT RUN
filereader_readAsBinaryString.any.worker.htmlPASSPASSPASSPASSPASSNOT RUN
filereader_readAsDataURL.any.html4/44/44/44/44/4NOT RUN
filereader_readAsDataURL.any.worker.html4/44/44/44/44/4NOT RUN
filereader_readAsDataURL.htmlPASSPASSPASSPASSPASSNOT RUN
filereader_readAsText.any.html2/22/22/22/22/2NOT RUN
filereader_readAsText.any.worker.html2/22/22/22/22/2NOT RUN
filereader_readAsText_blob_type_charset.any.html1/33/33/33/33/3NOT RUN
filereader_readAsText_blob_type_charset.any.worker.html1/33/33/33/33/3NOT RUN
filereader_readystate.any.htmlPASSPASSPASSPASSPASSNOT RUN
filereader_readystate.any.worker.htmlPASSPASSPASSPASSPASSNOT RUN
filereader_result.any.html12/1212/1212/1212/1212/12NOT RUN
filereader_result.any.worker.html12/1212/1212/1212/1212/12NOT RUN