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XHR: Use the response URL for responseURL and documents

Category

Network / Connectivity

Type

New or changed feature

Status

Enabled by default (Chrome 73)

Intent stage

None

Summary

XHR now uses the response URL rather than the request URL for responseURL and responseXML. These are only different if a service worker provided the response. If the service worker does respondWith(fetch(url)), then responseURL is url and responseXML.URL is url.

Standards & signals

• Specification: https://xhr.spec.whatwg.org/#the-responseurl-attribute
• Firefox: Positive
• Safari: No signal
• Web developers: No signals
• Tracking bug: https://crbug.com/915126

View on chromestatus.com