diff --git a/packages/vite/src/client/client.ts b/packages/vite/src/client/client.ts
index 736590e175529a..5b9220e9fb8713 100644
--- a/packages/vite/src/client/client.ts
+++ b/packages/vite/src/client/client.ts
@@ -214,7 +214,9 @@ async function waitForSuccessfulPing(ms = 1000) {
   // eslint-disable-next-line no-constant-condition
   while (true) {
     try {
-      await fetch(`${base}__vite_ping`)
+      // A fetch on a websocket URL will return a successful promise with status 400,
+      // but will reject a networking error.
+      await fetch(`${location.protocol}//${socketHost}`)
       break
     } catch (e) {
       await new Promise((resolve) => setTimeout(resolve, ms))