Datasets:
| /* _settle_worker.js -- the network keep-alive half of _chart_settle.js (see that file). | |
| * | |
| * Fetches a 1-byte file every 200ms so the page never goes network-idle while its flagship | |
| * chart is still mounting/animating. Runs on a Worker thread so it keeps ticking while the | |
| * main thread is blocked parsing the 10MB app bundle. Stops on the parent's "stop" message, | |
| * or after its own hard cap, whichever comes first -- so it can never wedge a capture. | |
| */ | |
| var PING_MS = 200; | |
| var MAX_PINGS = 90; // 18s ceiling; goto(networkidle) itself gives up at 30s | |
| var n = 0; | |
| function shutdown() { | |
| // Always let any in-flight ping settle before closing (see onmessage below). | |
| clearInterval(id); | |
| setTimeout(function () { self.close(); }, 1000); | |
| } | |
| var id = setInterval(function () { | |
| if (n >= MAX_PINGS) { shutdown(); return; } | |
| try { | |
| fetch('/_settle.txt?s=' + (n++), { cache: 'no-store' }).catch(function () {}); | |
| } catch (e) { | |
| shutdown(); | |
| } | |
| }, PING_MS); | |
| // Stop pinging, but do NOT close immediately: killing the worker while a ping is still in | |
| // flight leaves that request without a finished/failed event, and Playwright's networkidle | |
| // counter then never returns to zero -- the navigation hangs until goto()'s 30s timeout and | |
| // falls back to `domcontentloaded`, which is the very failure mode this shim exists to stop. | |
| self.onmessage = shutdown; | |