Long-lived "console-pipe" request stalling app

[ohthepain]

TanStack Devtools version

"@tanstack/react-devtools": "^0.9.4"

Framework/Library version

React v18.3.1

Describe the bug and the steps to reproduce it

We hit an intermittent local-dev issue where the browser became “dead”: navigation stopped working and all same-origin API requests showed Pending in DevTools.

First request to get stuck was a long-lived request named console-pipe. After that, most other requests to the same origin were stuck pending

The app works fine when deployed, so it's a dev-only issue.

What fixed it:
Disabling TanStack Devtools “server bus” connection stopped console-pipe from being created and immediately fixed the issue.

@tanstack/react-devtools with eventBusConfig: { connectToServerBus: true }
@tanstack/devtools-vite and tanstack/react-ai-devtools plugins enabled

Your Minimal, Reproducible Example - (Sandbox Highly Recommended)

I am not able to provide, sorry

Screenshots or Videos (Optional)

No response

Do you intend to try to help solve this bug with your own PR?

None

Terms & Code of Conduct

• I agree to follow this project's Code of Conduct
• I understand that if my bug cannot be reliable reproduced in a debuggable environment, it will probably not be fixed and this issue may even be closed.

[AlemTuzlak]

Will look into it, thank you, so the request got stuck in the network tab of crome devtools i assume?

[ohthepain]

I was viewing the issue in the chrome devtools. The app was also dead on safari. The symptom was that the entire app was dead. Could not navigate at all. If I killed vite server and restarted I could load a single page.

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On Thu, Feb 5, 2026 at 9:41 PM Alem Tuzlak ***@***.***> wrote: *AlemTuzlak* left a comment (TanStack/devtools#342) <#342 (comment)> Will look into it, thank you, so the request got stuck in the network tab of crome devtools i assume? — Reply to this email directly, view it on GitHub <#342 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AARBFXPLE6QNFR63MOSWSH34KOTIFAVCNFSM6AAAAACUDHZP4GVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTQNJWGA3TMNRQHA> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[AlemTuzlak]

Can you attach your vite config please

[ohthepain]

Sure, here you go! import { tanstackRouter } from ***@***.***/router-plugin/vite"; import { devtools } from ***@***.***/devtools-vite"; import react from ***@***.***/plugin-react"; import { defineConfig } from "vite"; import tsconfigPaths from "vite-tsconfig-paths"; export default defineConfig({ plugins: [ // NOTE: devtools server-bus can create long-lived "console-pipe" requests. // When those stall locally, it can make the browser show everything as "pending". // Re-enable by setting TANSTACK_DEVTOOLS=true. ...(process.env.TANSTACK_DEVTOOLS === "true" ? [devtools()] : []), tanstackRouter({ target: "react", autoCodeSplitting: true, generatedRouteTree: "./src/routeTree.gen.ts", }), react(), tsconfigPaths(), ], server: { port: 3000, middlewareMode: true, watch: { ignored: ["**/routeTree.gen.ts", "**/node_modules/**"], }, sourcemapIgnoreList: false, }, // Ensure source maps work properly in development // Vite generates source maps automatically in dev mode, but we can configure esbuild esbuild: { sourcemap: true, // Generate source maps for esbuild transformations }, build: { outDir: "dist", emptyOutDir: false, // Don't clear dist, preserve server.js from TypeScript compilation sourcemap: true, // Enable source maps for production builds chunkSizeWarningLimit: 1000, // Increase warning limit to 1MB (default is 500KB) rollupOptions: { output: { manualChunks: { // Split vendor chunks "react-vendor": ["react", "react-dom"], "router-vendor": ***@***.***/react-router", ***@***.***/react-query"], "auth-vendor": ["better-auth", ***@***.***/passkey"], // Split large libraries "google-vendor": ["googleapis", "google-auth-library"], }, sourcemapExcludeSources: false, // Include source files in source maps }, }, }, // Enable source maps for development debugging css: { devSourcemap: true, }, });

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On Fri, Feb 6, 2026 at 3:10 PM Alem Tuzlak ***@***.***> wrote: *AlemTuzlak* left a comment (TanStack/devtools#342) <#342 (comment)> Can you attach your vite config please — Reply to this email directly, view it on GitHub <#342 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AARBFXK6GLIIQWMHAZQCG334KSOFTAVCNFSM6AAAAACUDHZP4GVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTQNRQGY4TEOBXG4> . You are receiving this because you authored the thread.Message ID: ***@***.***>