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fix(hmr): client pinging behind a proxy on websocket disconnect (fix #4501) #5466

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merged 5 commits into from Mar 3, 2022
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9 changes: 7 additions & 2 deletions packages/vite/src/client/client.ts
Expand Up @@ -208,9 +208,14 @@ async function waitForSuccessfulPing(ms = 1000) {
// eslint-disable-next-line no-constant-condition
while (true) {
try {
await fetch(`${base}__vite_ping`)
break
const pingResponse = await fetch(`${base}__vite_ping`)

// success - 2xx status code
if (pingResponse.ok) break
// failure - non-2xx status code
else throw new Error()
} catch (e) {
// wait ms before attempting to ping again
await new Promise((resolve) => setTimeout(resolve, ms))
}
}
Expand Down