resource-timing
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w3c
Resource Timing
Add HTTP Method to ResourceTiming (#373) Fetch changes: whatwg/fetch#1632 Explainer: https://github.com/sohomdatta1/rt-explainer *** Preview | Diff
With https://github.com/w3c/resource-timing/pull/369 doing a corresponding PR to web platform tests makes them no longer catch regressions in intended transferSize exposure. For example, assert(timing.transferSize == 42) needs to be changed to...
While crawling [Resource Timing](https://w3c.github.io/resource-timing/), the following links to other specifications were detected as pointing to non-existing anchors: * [ ] https://webidl.spec.whatwg.org/#default-tojson-operation * [ ] https://www.w3.org/TR/navigation-timing-2/#dom-PerformanceNavigationTiming-startTime * [ ] https://www.w3.org/TR/performance-timeline/#dom-performance This...
Hello, we find that there is up to 200ms delay between `requestStart` and `connectEnd` and we are using HTTP2 already. Why browser seems to "block" some time after the connection...
As part of a project to update MDN's Performance API docs (https://github.com/openwebdocs/project/issues/62), I updated https://developer.mozilla.org/en-US/docs/Web/API/PerformanceResourceTiming/initiatorType. The Resource Timing spec contains a non-normative note listing `initiatorType` types: https://w3c.github.io/resource-timing/#dom-performanceresourcetiming-initiatortype. I believe a...
For [speculation-rule based prefetch](https://github.com/WICG/nav-speculation), the resource-fetching occurs before the navigation, resulting in negative values for `requestStart` and `responseStart` (measured w.r.t `startTime`, see below). Exposing the negative values allows us the...
When enabling service worker to proxy http requests, the connectStart/End, domainLookupStart/End returned from `performance.getEntriesByName` is the same as `workerStart`. And if I disable service worker, these values become "normal". My...
As discussed at TPAC, exposing information in response headers from caches and intermediaries would help measure CDN and other intermediary performance on an apples-to-apples / real user measurement basis. (working...
[Service Worker Static Routing API](https://github.com/WICG/service-worker-static-routing-api) is the API that allows developers to selectively choose whether the ServiceWorker should intercept requests, and allow them to specify when to not run ServiceWorker....
