navigation-timing
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w3c
Navigation Timing
This is a PR to demonstrate what defining a landing attribute could look like. This is not necessarily how we want the definition to land, as some concepts it relies...
Hi, Is there any possibility to get the HTTP Status Code from the Response Header in a JavaScript ? I do not find any related metric in the Time Navigation...
For sites using HTTP chunking for the main page, it can be useful to disambiguate between the time an element is displayed (e.g. from the element timing API) and when...
## SxG loading For a brief intro on HTTP Exchanges see: [SxG 101](https://docs.google.com/document/d/1ExkCm-1j7Bf3NBdBMK4iP_lDuYo9Oo2gCpYggsHsu18/edit#heading=h.611rwj97r4h9). As a tl;dr... 1. User navigates to https://distributor.example.org/foo.sxg, which is a signed exchange that provides a `Signature`...
The intent behind https://github.com/w3c/resource-timing/issues/21 will break: [[ Only the current document resource gets included as the only PerformanceNavigationTiming object in the Performance Timeline of the relevant context. ]] Assuming we...
Should `responseStart` measure the time to first by for *any* response or only measure non-informational HTTP responses (specifically focused on HTTP status code >= 200)? Currently the spec is ambiguous...
Currently page deactivation (specifically calling `pagehide` and `visibilitychange`) is done some time after `responseStart` and before the new page is activated, but it's unclear how long they took. This becomes...
WebIDL doesn't have a concept of "overloading", where a method is declared in an interface and has new steps in a subclass that inherits from it. The proper way to...
Tab-restore describes the condition where the browser is loaded and decides to navigate to certain tabs that were open before it was closed. This is defined in the HTML spec...
Related to the discussion on #179 There are a few uses cases where the [NavigationTimingType](https://w3c.github.io/navigation-timing/#sec-performance-navigation-types) does not cover the type: - Restores - can be detected with `document.wasDiscarded`. Should we...
