xhr

edit

WPT coverage of the tests of xhr 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	320	330	97%
Tentative	2	2	100%
Reftests	0	0	–
All	322	332	97%

Failure reasons

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

TEST BUG: 3
NOT IMPLEMENTED: 2
TEST RUNNER: 5

Stable tests

Test	Result	Subtests	Kind	Description
`XMLHttpRequest-withCredentials.any.js`	Pass	10 / 10
`abort-after-receive.any.js`	Pass	2 / 2
`abort-after-send.any.js`	Pass	2 / 2
`abort-after-stop.window.js`	Pass	1 / 1
`abort-after-timeout.any.js`	Pass	2 / 2
`abort-during-done.window.js`	Pass	3 / 3
`abort-during-headers-received.window.js`	Pass	1 / 1
`abort-during-loading.window.js`	Pass	1 / 1
`abort-during-navigation.window.js`	Pass	1 / 1
`abort-during-open.any.js`	Pass	2 / 2
`abort-during-readystatechange.any.js`	Pass	2 / 2
`abort-during-unsent.any.js`	Pass	2 / 2
`abort-during-upload.any.js`	Pass	2 / 2
`abort-event-abort.any.js`	Pass	2 / 2
`abort-event-listeners.any.js`	Pass	2 / 2
`abort-event-loadend.any.js`	Pass	2 / 2
`abort-event-order.htm`	Pass	1 / 1
`abort-progress-events.any.js`	Pass	4 / 4
`abort-upload-event-abort.any.js`	Pass	2 / 2
`abort-upload-event-loadend.any.js`	Pass	2 / 2
`abort-with-error.any.js`	Pass	2 / 2
`access-control-and-redirects-async-same-origin.any.js`	Pass	12 / 12
`access-control-and-redirects-async.any.js`	Pass	14 / 14
`access-control-and-redirects.any.js`	Pass	12 / 12
`access-control-basic-allow-access-control-origin-header-data-url.htm`	Pass	1 / 1
`access-control-basic-allow-access-control-origin-header.any.js`	Pass	2 / 2
`access-control-basic-allow-async.any.js`	Pass	2 / 2
`access-control-basic-allow-non-cors-safelisted-method-async.any.js`	Pass	2 / 2
`access-control-basic-allow-non-cors-safelisted-method.any.js`	Pass	2 / 2
`access-control-basic-allow-preflight-cache-invalidation-by-header.any.js`	Pass	2 / 2
`access-control-basic-allow-preflight-cache-invalidation-by-method.any.js`	Pass	2 / 2
`access-control-basic-allow-preflight-cache-timeout.any.js`	Pass	2 / 2
`access-control-basic-allow-preflight-cache.any.js`	Pass	2 / 2
`access-control-basic-allow-star.any.js`	Pass	2 / 2
`access-control-basic-allow.any.js`	Pass	2 / 2
`access-control-basic-cors-safelisted-request-headers.htm`	Pass	1 / 1
`access-control-basic-cors-safelisted-response-headers.htm`	Pass	1 / 1
`access-control-basic-denied.htm`	Pass	2 / 2
`access-control-basic-get-fail-non-simple.htm`	Pass	1 / 1
`access-control-basic-non-cors-safelisted-content-type.htm`	Pass	1 / 1
`access-control-basic-post-success-no-content-type.htm`	Pass	1 / 1
`access-control-basic-post-with-non-cors-safelisted-content-type.htm`	Pass	2 / 2
`access-control-basic-preflight-denied.htm`	Pass	1 / 1
`access-control-expose-headers-on-redirect.html`	Pass	1 / 1
`access-control-preflight-async-header-denied.htm`	Pass	1 / 1
`access-control-preflight-async-method-denied.htm`	Pass	1 / 1
`access-control-preflight-async-not-supported.htm`	Pass	1 / 1
`access-control-preflight-credential-async.htm`	Pass	1 / 1
`access-control-preflight-credential-sync.htm`	Pass	1 / 1
`access-control-preflight-headers-async.htm`	Pass	1 / 1
`access-control-preflight-headers-sync.htm`	Pass	1 / 1
`access-control-preflight-request-allow-headers-returns-star.any.js`	Pass	2 / 2
`access-control-preflight-request-header-lowercase.htm`	Pass	1 / 1
`access-control-preflight-request-header-returns-origin.any.js`	Pass	2 / 2
`access-control-preflight-request-header-sorted.htm`	Pass	1 / 1
`access-control-preflight-request-headers-origin.htm`	Pass	1 / 1
`access-control-preflight-request-invalid-status-301.htm`	Pass	1 / 1
`access-control-preflight-request-invalid-status-400.htm`	Pass	1 / 1
`access-control-preflight-request-invalid-status-501.htm`	Pass	1 / 1
`access-control-preflight-request-must-not-contain-cookie.htm`	Fail	0 / 1	TEST RUNNER	`xhr/resources/access-control-cookie.py` is not emulated
`access-control-preflight-sync-header-denied.htm`	Pass	1 / 1
`access-control-preflight-sync-method-denied.htm`	Pass	1 / 1
`access-control-preflight-sync-not-supported.htm`	Pass	1 / 1
`access-control-recursive-failed-request.htm`	Pass	1 / 1
`access-control-response-with-body-sync.htm`	Pass	1 / 1
`access-control-response-with-body.htm`	Pass	1 / 1
`access-control-response-with-exposed-headers.htm`	Pass	1 / 1
`access-control-sandboxed-iframe-allow-origin-null.htm`	Pass	1 / 1
`access-control-sandboxed-iframe-allow.htm`	Pass	1 / 1
`access-control-sandboxed-iframe-denied-without-wildcard.htm`	Pass	2 / 2
`access-control-sandboxed-iframe-denied.htm`	Pass	2 / 2
`allow-lists-starting-with-comma.htm`	Pass	1 / 1
`anonymous-mode-unsupported.htm`	Pass	1 / 1
`blob-range.any.js`	Pass	54 / 54
`close-worker-with-xhr-in-progress.html`	Pass	1 / 1
`content-type-unmodified.any.js`	Pass	2 / 2
`cookies.http.html`	Fail	0 / 1	TEST RUNNER	`xhr/resources/get-set-cookie.py` is not emulated (404)
`cors-expose-star.sub.any.js`	Pass	6 / 6
`cors-upload.any.js`	Pass	4 / 4
`data-uri.htm`	Pass	10 / 10
`event-abort.any.js`	Pass	2 / 2
`event-error-order.sub.html`	Pass	1 / 1
`event-error.sub.any.js`	Pass	4 / 4
`event-load.any.js`	Pass	2 / 2
`event-loadend.any.js`	Pass	2 / 2
`event-loadstart-upload.any.js`	Pass	2 / 2
`event-loadstart.any.js`	Pass	2 / 2
`event-progress.any.js`	Pass	2 / 2
`event-readystate-sync-open.any.js`	Pass	4 / 4
`event-readystatechange-loaded.any.js`	Fail	0 / 2	NOT IMPLEMENTED	streamed response bodies (the `LOADING` readystatechange is fired once, with the whole body)
`event-timeout-order.any.js`	Pass	2 / 2
`event-timeout.any.js`	Pass	2 / 2
`event-upload-progress-crossorigin.any.js`	Pass	8 / 8
`event-upload-progress.any.js`	Pass	8 / 8
`firing-events-http-content-length.html`	Pass	1 / 1
`firing-events-http-no-content-length.html`	Pass	1 / 1
`formdata.html`	Pass	9 / 9
`formdata/append-formelement.html`	Pass	8 / 8
`formdata/append.any.js`	Pass	14 / 14
`formdata/constructor-formelement.html`	Pass	1 / 1
`formdata/constructor-submitter-coordinate.html`	Pass	1 / 1
`formdata/constructor-submitter.html`	Pass	9 / 9
`formdata/constructor.any.js`	Pass	2 / 2
`formdata/delete-formelement.html`	Pass	4 / 4
`formdata/delete.any.js`	Pass	6 / 6
`formdata/foreach.any.js`	Pass	8 / 8
`formdata/get-formelement.html`	Pass	6 / 6
`formdata/get.any.js`	Pass	12 / 12
`formdata/has-formelement.html`	Pass	3 / 3
`formdata/has.any.js`	Pass	6 / 6
`formdata/iteration.any.js`	Pass	6 / 6
`formdata/set-blob.any.js`	Pass	12 / 12
`formdata/set-formelement.html`	Pass	8 / 8
`formdata/set.any.js`	Pass	14 / 14
`formdata/submitter-coordinate-value.html`	Pass	1 / 1
`getallresponseheaders-after-reuse.html`	Pass	1 / 1
`getallresponseheaders-cookies.htm`	Pass	1 / 1
`getallresponseheaders-status.htm`	Pass	1 / 1
`getallresponseheaders.htm`	Pass	7 / 7
`getresponseheader-case-insensitive.htm`	Pass	1 / 1
`getresponseheader-chunked-trailer.htm`	Pass	1 / 1
`getresponseheader-cookies-and-more.htm`	Pass	1 / 1
`getresponseheader-error-state.htm`	Pass	1 / 1
`getresponseheader-server-date.htm`	Fail	0 / 1	TEST RUNNER	the emulated server does not add the `Server` and `Date` headers that wptserve sends
`getresponseheader-special-characters.htm`	Pass	1 / 1
`getresponseheader-unsent-opened-state.htm`	Pass	1 / 1
`getresponseheader.any.js`	Pass	12 / 12
`header-user-agent-async.htm`	Pass	1 / 1
`header-user-agent-sync.htm`	Pass	1 / 1
`headers-normalize-response.htm`	Pass	15 / 15
`historical.html`	Pass	3 / 3
`idlharness.any.js`	Pass	516 / 516
`json.any.js`	Pass	12 / 12
`loadstart-and-state.html`	Pass	2 / 2
`open-after-abort.htm`	Pass	1 / 1
`open-after-setrequestheader.htm`	Pass	1 / 1
`open-after-stop.window.js`	Pass	1 / 1
`open-during-abort-event.htm`	Pass	1 / 1
`open-during-abort-processing.htm`	Pass	1 / 1
`open-during-abort.htm`	Pass	1 / 1
`open-method-bogus.htm`	Pass	8 / 8
`open-method-case-insensitive.htm`	Pass	6 / 6
`open-method-case-sensitive.htm`	Pass	9 / 9
`open-method-insecure.htm`	Pass	9 / 9
`open-method-responsetype-set-sync.htm`	Pass	5 / 5
`open-open-send.htm`	Pass	1 / 1
`open-open-sync-send.htm`	Pass	1 / 1
`open-parameters-toString.htm`	Pass	1 / 1
`open-referer.htm`	Pass	1 / 1
`open-send-during-abort.htm`	Pass	1 / 1
`open-send-open.htm`	Pass	1 / 1
`open-sync-open-send.htm`	Pass	1 / 1
`open-url-about-blank-window.htm`	Pass	1 / 1
`open-url-base-inserted-after-open.htm`	Pass	1 / 1
`open-url-base-inserted.htm`	Pass	1 / 1
`open-url-base.htm`	Pass	1 / 1
`open-url-encoding.htm`	Pass	2 / 2
`open-url-fragment.htm`	Pass	4 / 4
`open-url-javascript-window-2.htm`	Pass	1 / 1
`open-url-javascript-window.htm`	Pass	1 / 1
`open-url-multi-window-2.htm`	Pass	1 / 1
`open-url-multi-window-3.htm`	Pass	1 / 1
`open-url-multi-window-4.htm`	Timeout	0 / 1	TEST BUG	the test (whose comment says the pass condition is unclear and follows a proposal, whatwg/xhr#3, that was not merged) expects `error` and `loadend` events for an XHR of an iframe removed during the request: the document is destroyed, its fetch group is terminated, and the tasks of the terminated fetch do not run (the document is not fully active), so no event is fired, as in Firefox
`open-url-multi-window-5.htm`	Pass	1 / 1
`open-url-multi-window-6.htm`	Fail	0 / 1	TEST BUG	Web IDL creates the exception thrown by an operation in the current realm (the realm of the `open()` function, the realm of the iframe: https://webidl.spec.whatwg.org/#dfn-throw); the test expects an exception of the realm of the caller. Firefox and Safari fail the same way ("threw an exception from the wrong global"), Chrome does not throw
`open-url-multi-window.htm`	Pass	1 / 1
`open-url-redirected-sharedworker-origin.htm`	Pass	3 / 3
`open-url-redirected-worker-origin.htm`	Pass	3 / 3
`open-url-worker-origin.htm`	Pass	3 / 3
`open-url-worker-simple.htm`	Pass	1 / 1
`open-user-password-non-same-origin.htm`	Pass	1 / 1
`over-1-meg.any.js`	Pass	2 / 2
`overridemimetype-blob.html`	Pass	77 / 77
`overridemimetype-chunked-response.window.js`	Fail	0 / 4	TEST RUNNER	`xhr/resources/content-in-chunks.py` is not emulated (404)
`overridemimetype-done-state.any.js`	Pass	2 / 2
`overridemimetype-edge-cases.window.js`	Pass	4 / 4
`overridemimetype-headers-received-state-force-shiftjis.htm`	Pass	1 / 1
`overridemimetype-invalid-mime-type.htm`	Pass	3 / 3
`overridemimetype-loading-state.htm`	Pass	1 / 1
`overridemimetype-open-state-force-utf-8.htm`	Pass	1 / 1
`overridemimetype-open-state-force-xml.htm`	Pass	1 / 1
`overridemimetype-unsent-state-force-shiftjis.any.js`	Pass	2 / 2
`preserve-ua-header-on-redirect.htm`	Pass	2 / 2
`progress-events-response-data-gzip.htm`	Pass	1 / 1
`progressevent-constructor.any.js`	Pass	30 / 30
`progressevent-constructor.html`	Pass	10 / 10
`progressevent-interface.html`	Pass	7 / 7
`request-content-length.any.js`	Pass	4 / 4
`response-body-errors.any.js`	Pass	4 / 4
`response-data-arraybuffer.htm`	Pass	1 / 1
`response-data-blob.htm`	Pass	1 / 1
`response-data-deflate.htm`	Pass	1 / 1
`response-data-gzip.htm`	Pass	1 / 1
`response-data-progress.htm`	Fail	0 / 2	NOT IMPLEMENTED	streamed response bodies (a single `progress` event with the whole body)
`response-invalid-responsetype.htm`	Pass	5 / 5
`response-invalid-utf8.html`	Pass	1 / 1
`response-json-bom.html`	Pass	1 / 1
`response-json-during-loading.html`	Pass	1 / 1
`response-json.htm`	Pass	4 / 4
`response-method.htm`	Pass	3 / 3
`responseText-status.html`	Pass	1 / 1
`responseType-document-in-worker.html`	Pass	1 / 1
`responseXML-unavailable-in-worker.html`	Pass	1 / 1
`responseXML-xml-scripting-support-disabled.html`	Pass	5 / 5
`responsedocument-decoding.htm`	Pass	6 / 6
`responsetext-decoding.htm`	Pass	37 / 37
`responsetype.any.js`	Pass	100 / 100
`responseurl-after-abort.any.js`	Pass	10 / 10
`responseurl.html`	Pass	2 / 2
`responsexml-basic.htm`	Pass	2 / 2
`responsexml-document-properties.htm`	Pass	24 / 24
`responsexml-get-twice.htm`	Pass	4 / 4
`responsexml-invalid-type.html`	Pass	1 / 1
`responsexml-media-type.htm`	Pass	15 / 15
`responsexml-non-document-types.htm`	Pass	5 / 5
`responsexml-non-well-formed.htm`	Pass	7 / 7
`security-consideration.sub.html`	Pass	1 / 1
`send-accept-language.htm`	Pass	2 / 2
`send-accept.htm`	Pass	1 / 1
`send-after-setting-document-domain.htm`	Pass	3 / 3
`send-authentication-basic-cors-not-enabled.htm`	Pass	1 / 1
`send-authentication-basic-cors.htm`	Pass	1 / 1
`send-authentication-basic-repeat-no-args.htm`	Pass	1 / 1
`send-authentication-basic-setrequestheader-and-arguments.htm`	Pass	1 / 1
`send-authentication-basic-setrequestheader-existing-session.htm`	Pass	1 / 1
`send-authentication-basic-setrequestheader.htm`	Pass	1 / 1
`send-authentication-basic.htm`	Pass	1 / 1
`send-authentication-competing-names-passwords.htm`	Pass	13 / 13
`send-authentication-cors-basic-setrequestheader.htm`	Pass	1 / 1
`send-authentication-cors-setrequestheader-no-cred.htm`	Fail	1 / 2	TEST BUG	the synchronous request whose CORS preflight rejects the `Authorization` header expects `error` and `loadend` events: the request error steps of a synchronous request throw the `NetworkError` before the events are fired (https://xhr.spec.whatwg.org/#request-error-steps, step 4)
`send-blob-with-no-mime-type.html`	Pass	8 / 8
`send-conditional-cors.htm`	Pass	2 / 2
`send-conditional.htm`	Pass	2 / 2
`send-content-type-charset.htm`	Pass	19 / 19
`send-content-type-string.htm`	Pass	3 / 3
`send-data-arraybuffer.any.js`	Pass	2 / 2
`send-data-arraybufferview.any.js`	Pass	2 / 2
`send-data-blob.htm`	Pass	1 / 1
`send-data-es-object.any.js`	Pass	22 / 22
`send-data-formdata.any.js`	Pass	2 / 2
`send-data-isolation.html`	Pass	3 / 3
`send-data-sharedarraybuffer.any.js`	Pass	28 / 28
`send-data-string-invalid-unicode.any.js`	Pass	18 / 18
`send-data-unexpected-tostring.htm`	Pass	3 / 3
`send-document-lone-surrogate.html`	Pass	1 / 1
`send-entity-body-basic.htm`	Pass	6 / 6
`send-entity-body-document-bogus.htm`	Pass	4 / 4
`send-entity-body-document.htm`	Pass	7 / 7
`send-entity-body-empty.htm`	Pass	3 / 3
`send-entity-body-get-head-async.htm`	Pass	2 / 2
`send-entity-body-get-head.htm`	Pass	2 / 2
`send-entity-body-none.htm`	Pass	6 / 6
`send-network-error-async-events.sub.htm`	Pass	1 / 1
`send-network-error-sync-events.sub.htm`	Pass	2 / 2
`send-no-response-event-loadend.htm`	Pass	1 / 1
`send-no-response-event-loadstart.htm`	Pass	1 / 1
`send-no-response-event-order.htm`	Pass	1 / 1
`send-non-same-origin.htm`	Pass	7 / 7
`send-receive-utf16.htm`	Pass	3 / 3
`send-redirect-bogus-sync.sub.htm`	Pass	5 / 5
`send-redirect-bogus.sub.htm`	Pass	4 / 4
`send-redirect-infinite-sync.htm`	Pass	1 / 1
`send-redirect-infinite.htm`	Pass	1 / 1
`send-redirect-no-location.htm`	Pass	4 / 4
`send-redirect-post-upload.htm`	Pass	5 / 5
`send-redirect-to-cors.htm`	Pass	23 / 23
`send-redirect-to-non-cors.htm`	Pass	4 / 4
`send-redirect.htm`	Pass	34 / 34
`send-response-event-order.htm`	Pass	1 / 1
`send-response-upload-event-loadend.htm`	Pass	1 / 1
`send-response-upload-event-loadstart.htm`	Pass	1 / 1
`send-response-upload-event-progress.htm`	Pass	1 / 1
`send-send.any.js`	Pass	2 / 2
`send-sync-blocks-async.htm`	Pass	1 / 1
`send-sync-no-response-event-load.htm`	Pass	1 / 1
`send-sync-no-response-event-loadend.htm`	Pass	1 / 1
`send-sync-no-response-event-order.htm`	Pass	1 / 1
`send-sync-response-event-order.htm`	Pass	1 / 1
`send-sync-timeout.htm`	Pass	1 / 1
`send-timeout-events.htm`	Pass	1 / 1
`send-usp.any.js`	Pass	270 / 270
`setrequestheader-after-send.htm`	Pass	1 / 1
`setrequestheader-allow-empty-value.htm`	Pass	3 / 3
`setrequestheader-allow-whitespace-in-value.htm`	Pass	4 / 4
`setrequestheader-before-open.htm`	Pass	1 / 1
`setrequestheader-bogus-name.htm`	Pass	71 / 71
`setrequestheader-bogus-value.htm`	Pass	5 / 5
`setrequestheader-case-insensitive.htm`	Pass	2 / 2
`setrequestheader-combining.window.js`	Pass	1 / 1
`setrequestheader-content-type.htm`	Pass	34 / 34
`setrequestheader-header-allowed.htm`	Pass	10 / 10
`setrequestheader-header-forbidden.htm`	Pass	2 / 2
`setrequestheader-open-setrequestheader.htm`	Pass	1 / 1
`split-byte-order-mark.any.js`	Fail	0 / 8	TEST RUNNER	`xhr/resources/content-in-chunks.py` is not emulated (404)
`status-async.htm`	Pass	27 / 27
`status-basic.htm`	Pass	27 / 27
`status-error.htm`	Pass	21 / 21
`status.h2.window.js`	Pass	7 / 7
`sync-no-progress.any.js`	Pass	2 / 2
`sync-no-timeout.any.js`	Pass	3 / 3
`sync-xhr-and-window-onload.html`	Pass	1 / 1
`template-element.html`	Pass	3 / 3
`thrown-error-in-events.html`	Pass	2 / 2
`timeout-cors-async.htm`	Pass	1 / 1
`timeout-multiple-fetches.html`	Pass	2 / 2
`timeout-sync.htm`	Pass	2 / 2
`xhr-authorization-redirect.any.js`	Pass	9 / 9
`xhr-timeout-longtask.any.js`	Pass	2 / 2
`xmlhttprequest-basic.htm`	Pass	1 / 1
`xmlhttprequest-eventtarget.htm`	Pass	1 / 1
`xmlhttprequest-network-error-sync.htm`	Pass	1 / 1
`xmlhttprequest-network-error.htm`	Pass	1 / 1
`xmlhttprequest-sync-block-defer-scripts.html`	Pass	1 / 1
`xmlhttprequest-sync-block-scripts.html`	Pass	1 / 1
`xmlhttprequest-sync-not-hang-scriptloader.html`	Pass	1 / 1
`xmlhttprequest-timeout-aborted.html`	Pass	3 / 3
`xmlhttprequest-timeout-abortedonmain.html`	Pass	2 / 2
`xmlhttprequest-timeout-overrides.html`	Pass	3 / 3
`xmlhttprequest-timeout-overridesexpires.html`	Pass	3 / 3
`xmlhttprequest-timeout-reused.html`	Pass	1 / 1
`xmlhttprequest-timeout-simple.html`	Pass	3 / 3
`xmlhttprequest-timeout-synconmain.html`	Pass	2 / 2
`xmlhttprequest-timeout-twice.html`	Pass	3 / 3
`xmlhttprequest-timeout-worker-aborted.html`	Pass	9 / 9
`xmlhttprequest-timeout-worker-overrides.html`	Pass	3 / 3
`xmlhttprequest-timeout-worker-overridesexpires.html`	Pass	9 / 9
`xmlhttprequest-timeout-worker-simple.html`	Pass	3 / 3
`xmlhttprequest-timeout-worker-synconworker.html`	Pass	3 / 3
`xmlhttprequest-timeout-worker-twice.html`	Pass	3 / 3
`xmlhttprequest-unsent.htm`	Pass	1 / 1

Tentative tests

Test	Result	Subtests	Kind	Description
`sync-xhr-supported-by-permissions-policy.tentative.html`	Pass	1 / 1
`xmlhttprequest-sync-default-permissions-policy.tentative.sub.html`	Pass	5 / 5