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Coverage / xhr

XMLHttpRequest

Specification: xhr.spec.whatwg.org/. 5 interfaces defined here, 45 members exposed on Window (Web IDL). Group: Test DOM core.

Existence only: “present” means the name is defined where Web IDL puts it, not that it behaves as the standard says. The featured checks test behavior.

Share present per engine
EngineMembers presentInterfaces present
warpdom0.1.6maintainer's engine31% (14 of 45)2 of 5
happy-dom21.0.384% (38 of 45)5 of 5
jsdom30.1.3100% (45 of 45)5 of 5
linkedom0.18.1324% (11 of 45)1 of 5
5 of 5 interfaces
FormData11 memberswarpdom: Presenthappy-dom: Presentjsdom: Presentlinkedom: Node.js
ProgressEvent3 memberswarpdom: Presenthappy-dom: Presentjsdom: Presentlinkedom: Missing
XMLHttpRequest24 memberswarpdom: Missinghappy-dom: Presentjsdom: Presentlinkedom: Missing
XMLHttpRequestEventTarget7 memberswarpdom: Missinghappy-dom: Presentjsdom: Presentlinkedom: Missing
XMLHttpRequestUpload0 memberswarpdom: Missinghappy-dom: Presentjsdom: Presentlinkedom: Missing

Probed 2026-10-19. Data: idl.json (CC BY 4.0).