webmessaging

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WPT coverage of the tests of webmessaging at the revision 5602b0f210e3. The tests link to their results in the browsers on wpt.fyi. The tentative tests (experimental features) and the reftests are listed separately from the stable tests.

Group	Passing	Tests	Pass rate
Stable	131	131	100%
Tentative	0	7	0%
Reftests	0	0	–
All	131	138	95%

Failure reasons

The tests that do not pass (failing or disabled), by kind of reason. A test with several reasons counts once per kind.

NOT IMPLEMENTED: 4
REQUIRES: 1
- workers: 1
TEST RUNNER: 2

Stable tests

Test	Result	Subtests
`Channel_postMessage_Blob.any.js`	Pass	2 / 2
`Channel_postMessage_DataCloneErr.any.js`	Pass	2 / 2
`Channel_postMessage_clone_port.any.js`	Pass	4 / 4
`Channel_postMessage_clone_port_error.any.js`	Pass	2 / 2
`Channel_postMessage_event_properties.any.js`	Pass	2 / 2
`Channel_postMessage_ports_readonly_array.any.js`	Pass	2 / 2
`Channel_postMessage_target_source.any.js`	Pass	2 / 2
`Channel_postMessage_transfer_xsite_incoming_messages.window.js`	Pass	1 / 1
`Channel_postMessage_with_transfer_entangled.any.js`	Pass	2 / 2
`Channel_postMessage_with_transfer_incoming_messages.any.js`	Pass	2 / 2
`Channel_postMessage_with_transfer_outgoing_messages.any.js`	Pass	2 / 2
`MessageEvent-trusted.any.js`	Pass	4 / 4
`MessageEvent-trusted.window.js`	Pass	1 / 1
`MessageEvent.any.js`	Pass	18 / 18
`MessageEvent_onmessage_postMessage_infinite_loop.html`	Pass	1 / 1
`MessageEvent_properties.htm`	Pass	1 / 1
`MessagePort_initial_disabled.any.js`	Pass	2 / 2
`MessagePort_onmessage_start.any.js`	Pass	2 / 2
`Transferred_objects_unusable.sub.htm`	Pass	2 / 2
`broadcastchannel/basics.any.js`	Pass	14 / 14
`broadcastchannel/blobs.html`	Pass	2 / 2
`broadcastchannel/cross-origin.html`	Pass	1 / 1
`broadcastchannel/detached-iframe.html`	Pass	6 / 6
`broadcastchannel/interface.any.js`	Pass	26 / 26
`broadcastchannel/opaque-origin.html`	Pass	4 / 4
`broadcastchannel/ordering.html`	Pass	1 / 1
`broadcastchannel/origin.window.js`	Pass	1 / 1
`broadcastchannel/sandbox.html`	Pass	1 / 1
`broadcastchannel/service-worker.https.html`	Pass	1 / 1
`broadcastchannel/workers.html`	Pass	10 / 10
`event.data.sub.htm`	Pass	1 / 1
`event.origin.sub.htm`	Pass	1 / 1
`event.ports.sub.htm`	Pass	2 / 2
`event.source.htm`	Pass	1 / 1
`event.source.xorigin.sub.htm`	Pass	1 / 1
`global-postMessage.html`	Pass	1 / 1
`message-channels/basics.any.js`	Pass	2 / 2
`message-channels/close.any.js`	Pass	12 / 12
`message-channels/cross-document.html`	Pass	1 / 1
`message-channels/detached-iframe.window.js`	Pass	2 / 2
`message-channels/dictionary-transferrable.any.js`	Pass	2 / 2
`message-channels/historical.any.js`	Pass	9 / 9
`message-channels/implied-start.any.js`	Pass	2 / 2
`message-channels/no-start.any.js`	Pass	2 / 2
`message-channels/worker-post-after-close.any.js`	Pass	2 / 2
`message-channels/worker.any.js`	Pass	2 / 2
`messageerror.html`	Pass	3 / 3
`multi-globals/broadcastchannel-current.sub.html`	Pass	1 / 1
`multi-globals/broadcastchannel-incumbent.sub.html`	Pass	1 / 1
`multi-globals/messageport-current.html`	Pass	1 / 1
`multi-globals/messageport-incumbent.html`	Pass	1 / 1
`postMessage-to-target-not-fully-active-on-reload.html`	Pass	1 / 1
`postMessage_ArrayBuffer.sub.htm`	Pass	2 / 2
`postMessage_CryptoKey_insecure.sub.html`	Pass	1 / 1
`postMessage_Date.sub.htm`	Pass	1 / 1
`postMessage_Document.htm`	Pass	1 / 1
`postMessage_Function.htm`	Pass	1 / 1
`postMessage_MessagePorts_sorigin.htm`	Pass	2 / 2
`postMessage_MessagePorts_xorigin.sub.htm`	Pass	2 / 2
`postMessage_MessagePorts_xsite.sub.window.js`	Pass	1 / 1
`postMessage_arrays.sub.htm`	Pass	1 / 1
`postMessage_asterisk_xorigin.sub.htm`	Pass	1 / 1
`postMessage_cross_domain_image_transfer_2d.sub.htm`	Pass	3 / 3
`postMessage_crosssite.sub.htm`	Pass	1 / 1
`postMessage_dup_transfer_objects.htm`	Pass	1 / 1
`postMessage_invalid_targetOrigin.htm`	Pass	1 / 1
`postMessage_objects.sub.htm`	Pass	1 / 1
`postMessage_origin_mismatch.sub.htm`	Pass	1 / 1
`postMessage_origin_mismatch_xorigin.sub.htm`	Pass	1 / 1
`postMessage_solidus_sorigin.htm`	Pass	1 / 1
`postMessage_solidus_xorigin.sub.htm`	Pass	1 / 1
`with-options/broken-origin.html`	Pass	1 / 1
`with-options/host-specific-origin.html`	Pass	1 / 1
`with-options/message-channel-transferable.html`	Pass	1 / 1
`with-options/no-target-origin.html`	Pass	1 / 1
`with-options/null-transfer.html`	Pass	1 / 1
`with-options/one-arg.html`	Pass	1 / 1
`with-options/slash-origin.html`	Pass	1 / 1
`with-options/undefined-transferable.html`	Pass	1 / 1
`with-options/unknown-parameter.html`	Pass	1 / 1
`with-ports/001.html`	Pass	1 / 1
`with-ports/002.html`	Pass	1 / 1
`with-ports/003.html`	Pass	1 / 1
`with-ports/004.html`	Pass	1 / 1
`with-ports/005.html`	Pass	1 / 1
`with-ports/006.html`	Pass	1 / 1
`with-ports/007.html`	Pass	1 / 1
`with-ports/010.html`	Pass	15 / 15
`with-ports/011.html`	Pass	1 / 1
`with-ports/012.html`	Pass	1 / 1
`with-ports/013.html`	Pass	1 / 1
`with-ports/014.html`	Pass	1 / 1
`with-ports/015.html`	Pass	1 / 1
`with-ports/016.html`	Pass	1 / 1
`with-ports/017.html`	Pass	1 / 1
`with-ports/018.html`	Pass	1 / 1
`with-ports/019.html`	Pass	1 / 1
`with-ports/020.html`	Pass	1 / 1
`with-ports/021.html`	Pass	1 / 1
`with-ports/023.html`	Pass	1 / 1
`with-ports/024.html`	Pass	1 / 1
`with-ports/025.html`	Pass	1 / 1
`with-ports/026.html`	Pass	1 / 1
`with-ports/027.html`	Pass	2 / 2
`without-ports/001.html`	Pass	1 / 1
`without-ports/002.html`	Pass	1 / 1
`without-ports/003.html`	Pass	1 / 1
`without-ports/004.html`	Pass	1 / 1
`without-ports/005.html`	Pass	1 / 1
`without-ports/006.html`	Pass	1 / 1
`without-ports/007.html`	Pass	1 / 1
`without-ports/009.html`	Pass	1 / 1
`without-ports/010.html`	Pass	15 / 15
`without-ports/011.html`	Pass	1 / 1
`without-ports/012.html`	Pass	1 / 1
`without-ports/013.html`	Pass	1 / 1
`without-ports/014.html`	Pass	1 / 1
`without-ports/015.html`	Pass	1 / 1
`without-ports/016.html`	Pass	1 / 1
`without-ports/017.html`	Pass	1 / 1
`without-ports/018.html`	Pass	1 / 1
`without-ports/019.html`	Pass	1 / 1
`without-ports/020.html`	Pass	1 / 1
`without-ports/021.html`	Pass	1 / 1
`without-ports/023.html`	Pass	1 / 1
`without-ports/024.html`	Pass	1 / 1
`without-ports/025.html`	Pass	3 / 3
`without-ports/026.html`	Pass	1 / 1
`without-ports/027.html`	Pass	1 / 1
`without-ports/028.html`	Pass	1 / 1
`without-ports/029.html`	Pass	1 / 1

Tentative tests

Test	Result	Subtests	Kind	Description
`broadcastchannel/cross-partition.https.tentative.html`	Fail	0 / 5	NOT IMPLEMENTED	partitioning `BroadcastChannel` by storage key (a cross-site iframe receives the messages)
`message-channels/close-event/document-destroyed.tentative.window.js`	Error	0 / 3	TEST RUNNER	the `window.postMessage()` stand-in does not transfer, so `event.ports` is empty (the helper then calls an undefined `reject`)
`message-channels/close-event/entangled-after-back-forward-cache-restore.https.tentative.window.js`	Fail	0 / 1	REQUIRES(workers)	service workers (`navigator.serviceWorker` is undefined)
`message-channels/close-event/explicitly-closed.tentative.window.js`	Error	2 / 4	TEST RUNNER	the `window.postMessage()` stand-in does not transfer, so `event.ports` is empty (the helper then calls an undefined `reject`)
`message-channels/close-event/garbage-collected.tentative.any.js`	Timeout	0 / 2	NOT IMPLEMENTED	firing `close` at a port whose entangled port is garbage collected (and no `garbageCollect()` hook)
`message-channels/user-activation.tentative.any.js`	Fail	0 / 2	NOT IMPLEMENTED	`MessageEvent.userActivation` (`includeUserActivation`)
`worker_postMessage_user_activation.tentative.html`	Fail	0 / 1	NOT IMPLEMENTED	`MessageEvent.userActivation` (`includeUserActivation`)