What should we expect the web exposed impact of this change to be? Am I correct to assume that pages that don't reconnect on pageshow will have some of their functionality broken?
On Fri, 17 Apr 2026, 12:17 Chromestatus, <[email protected]> wrote: > *Contact emails* > [email protected], [email protected] > > *Specification* > https://github.com/whatwg/html/pull/12349 > > *Summary* > Active WebSocket connections no longer prevent a page from entering the > Back/Forward Cache (BFCache). By closing connections on BFCache entry > instead of marking the document as ineligible, the browser allows pages > with active websockets to be stored and restored. > > *Blink component* > Blink>Network>WebSockets > <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ENetwork%3EWebSockets%22> > > *Web Feature ID* > *No information provided* > > *Risks* > > > *Interoperability and Compatibility* > *No information provided* > > *Gecko*: No signal ( > https://github.com/mozilla/standards-positions/issues/1390) > > *WebKit*: Shipped/Shipping ( > https://github.com/WebKit/standards-positions/issues/648) > > *Web developers*: Positive ( > https://www.linkedin.com/feed/update/urn:li:activity:7376981348709756928?commentUrn=urn%3Ali%3Acomment%3A%28activity%3A7376981348709756928%2C7377217740341747712%29&replyUrn=urn%3Ali%3Acomment%3A%28activity%3A7376981348709756928%2C7377954189664129024%29&dashCommentUrn=urn%3Ali%3Afsd_comment%3A%287377217740341747712%2Curn%3Ali%3Aactivity%3A7376981348709756928%29&dashReplyUrn=urn%3Ali%3Afsd_comment%3A%287377954189664129024%2Curn%3Ali%3Aactivity%3A7376981348709756928%29) > In > this post, Wix explains how BFCache helped raise their global Core Web > Vitals pass rate from 61% to 75%. They identified WebSocket connections > from chat widgets as a key blocker. This reflects a common challenge where > developers lack control over WebSockets in third-party scripts, and > feedback on this effort has been very positive. > > *Other signals*: > > *WebView application risks* > > Does this intent deprecate or change behavior of existing APIs, such that > it has potentially high risk for Android WebView-based applications? > *No information provided* > > > *Debuggability* > *No information provided* > > *Will this feature be supported on all six Blink platforms (Windows, Mac, > Linux, ChromeOS, Android, and Android WebView)?* > Yes > > *Is this feature fully tested by web-platform-tests > <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?* > Yes > > https://wpt.fyi/results/websockets/back-forward-cache-closes-open-websocket-connection.tentative.window.html > This new WPTs have been upstreamed, but results may not yet appear on > wpt.fyi. We have an existing test which verifies that active WebSockets > block BFCache entry: > https://wpt.fyi/results/websockets/back-forward-cache-with-open-websocket-connection.window.html?label=experimental&label=master&aligned. > The existing WPT will eventually be replaced by the new WPT. > > > > *Tracking bug* > https://g-issues.chromium.org/issues/467838624 > > *Estimated milestones* > Shipping on desktop 148 > Shipping on Android 148 > Shipping on WebView 148 > Shipping on iOS 148 > > *Link to entry on the Chrome Platform Status* > https://chromestatus.com/feature/5068439115923456 > > This intent message was generated by Chrome Platform Status > <https://chromestatus.com>. > > -- > You received this message because you are subscribed to the Google Groups > "blink-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/69e208a3.710a0220.254d62.0009.GAE%40google.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/69e208a3.710a0220.254d62.0009.GAE%40google.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAOmohSKA8fP5QuOE52cVhpRSX0BDSb3NkjyjMt%3DQBTWXEtYicg%40mail.gmail.com.
