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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 / webmcp / imperative

Spec: hthttps://webmachinelearning.github.io/webmcp/ ↗

Runs: Chrome 158.0.8110.0 (wpt@e44e5a153, 2026-10-18) | Firefox 160.0a1 (wpt@b58866519, 2026-10-18) | Safari 254 preview (wpt@4c84956f8, 2026-10-18) | Ladybird 1.0-3980c (wpt@9d8aceec0, 2026-10-18) | Servo Servo 0.7 (wpt@df642c414, 2026-10-17) | Blitz 17de049b1 (wpt@9d8aceec0, 2026-10-18)

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%Apr 2026May 2026Jun 2026Jul 2026Aug 2026Sep 2026Oct 2026ChromeFirefoxSafariLadybirdServo

Sort: alphabetical | by subtest count

AreaChromeFirefoxSafariLadybirdServoBlitz
Total100.0%117/1173.4%4/1173.4%4/1173.4%4/1173.4%4/1170.0%0/117
TestChromeFirefoxSafariLadybirdServoBlitz
Total100.0%117/1173.4%4/1173.4%4/1173.4%4/1173.4%4/117NO DATA
abort-signal-after-iframe-removal-crash.https.htmlPASSTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
cancel-reentrancy-crash.https.htmlPASSPASSPASSPASSPASSNOT RUN
detached-frame-executeTool.https.htmlPASSERRORERRORERRORERRORNOT RUN
detached-frame-getTools.https.htmlPASSFAILFAILFAILFAILNOT RUN
detached-frame-modelContext.https.htmlPASSFAILFAILFAILFAILNOT RUN
detached-frame-registerTool.https.htmlPASSFAILFAILFAILFAILNOT RUN
duplicate_tool_registration.https.htmlPASSFAILFAILFAILFAILNOT RUN
executeTool-abort.https.html7/70/70/70/70/7NOT RUN
executeTool-across-trees.https.htmlPASSFAILFAILFAILFAILNOT RUN
executeTool-caller-navigate-abort.https.html4/40/40/40/40/4NOT RUN
executeTool-detach-toolactivated.https.html2/20/20/20/20/2NOT RUN
executeTool-detach-toolcancel.https.html2/20/20/20/20/2NOT RUN
executeTool-error-window-onerror.https.html2/20/20/20/20/2NOT RUN
executeTool-events.https.html3/30/30/30/30/3NOT RUN
executeTool-invalid-dictionary.https.html2/20/20/20/20/2NOT RUN
executeTool-reentrant-cancellation.https.html3/30/30/30/30/3NOT RUN
executeTool-same-document-navigation-crash.https.htmlPASSPASSPASSPASSPASSNOT RUN
executeTool-signal-cross-origin.https.html3/30/30/30/30/3NOT RUN
executeTool-target-detachment.https.html4/40/40/40/40/4NOT RUN
executeTool-target-navigation.https.htmlPASSFAILFAILFAILFAILNOT RUN
executeTool-unregister-resolution-race.https.htmlPASSFAILFAILFAILFAILNOT RUN
exposedTo-cross-origin-child.https.html5/50/50/50/50/5NOT RUN
exposedTo-defaults-cross-origin.https.html4/40/40/40/40/4NOT RUN
exposedTo-defaults-same-origin.https.html4/40/40/40/40/4NOT RUN
exposedTo-invalid-origins.https.html12/120/120/120/120/12NOT RUN
exposedTo-multiple-children.https.htmlPASSTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
exposedTo-window-open.https.htmlPASSFAILFAILFAILFAILNOT RUN
getTools-filtering.https.html2/20/20/20/20/2NOT RUN
getTools-imperative-annotations.https.html4/40/40/40/40/4NOT RUN
getTools-imperative-schema.https.htmlPASSFAILFAILFAILFAILNOT RUN
getTools.https.htmlPASSFAILFAILFAILFAILNOT RUN
initial-about-blank-shared-tool.https.htmlPASSFAILFAILFAILFAILNOT RUN
model_context.https.html4/41/41/41/41/4NOT RUN
non-secure.htmlPASSPASSPASSPASSPASSNOT RUN
object-arguments.https.htmlPASSFAILFAILFAILFAILNOT RUN
opaque-origin-tools.https.html2/20/20/20/20/2NOT RUN
permissions-policy.https.html4/40/40/40/40/4NOT RUN
register-tool-input-schema-registers-same-name.https.htmlPASSFAILFAILFAILFAILNOT RUN
register-tool-input-schema-removes-iframe-crash.https.htmlPASSTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
register-tool-title.https.html3/30/30/30/30/3NOT RUN
register_tool_invalid_json_schema.https.html4/40/40/40/40/4NOT RUN
register_tool_name_validation.https.html2/20/20/20/20/2NOT RUN
register_tool_no_schema.https.htmlPASSFAILFAILFAILFAILNOT RUN
register_tool_signal.https.html4/40/40/40/40/4NOT RUN
register_tool_toolchange.https.htmlPASSFAILFAILFAILFAILNOT RUN
register_tool_with_empty_annotation.https.htmlPASSFAILFAILFAILFAILNOT RUN
register_tool_with_schema.https.html2/20/20/20/20/2NOT RUN
same-origin-iframe-registerTool-regression.https.htmlPASSFAILFAILFAILFAILNOT RUN
tool-re-registration-race.https.htmlPASSFAILFAILFAILFAILNOT RUN
unregister-during-executeTool.https.html4/40/40/40/40/4NOT RUN