Intent to Prototype: HTTP response status code in Resource Timing
Abin Paul
Contact emails
Explainer
Specification
Resource Timing PR : https://github.com/w3c/resource-timing/pull/335
Fetch PR : https://github.com/whatwg/fetch/pull/1468
Summary
Adds a field to PerfomanceResourceTiming to indicate the HTTP response status when the resource was fetched.
Blink component
Blink>PerformanceAPIs>ResourceTiming
Motivation
Currently there is no straightforward way to tell if a resource failed loading for developers using the Resource Timing API. Indications exist for errored responses, but not for requests that got an error response.
Exposing the status would enable analysis by segregation of resources based on the returned status. Analysis of 4xx and 5xx responses would be easier
Initial public proposal
https://github.com/w3c/resource-timing/pull/335
TAG review
https://github.com/w3ctag/design-reviews/issues/757
TAG review status
Pending
Risks
Interoperability and Compatibility
Gecko: https://github.com/mozilla/standards-positions/issues/665
WebKit: https://github.com/WebKit/standards-positions/issues/35
Web developers: https://github.com/w3c/resource-timing/issues/90 is a good signal showing interest in the feature.
Other signals:
WebView application risks
Does this intent deprecate or change behaviour of existing APIs, such that it has potentially high risk for Android WebView-based applications?
Debuggability
Is this feature fully tested by web-platform-tests?
Yes
Flag name
ResourceTimingResponseStatusCode
Requires code in //chrome?
False
Tracking bug
https://bugs.chromium.org/p/chromium/issues/detail?id=1343293
Estimated milestones
No milestones specified
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5163838794629120
This intent message was generated by Chrome Platform Status.