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[GH-ISSUE #5571] [bug]: Failed running request on extension for localhost requests #2151

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opened 2026-03-16 23:22:41 +03:00 by kerem · 2 comments

kerem commented

2026-03-16 23:22:41 +03:00

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Originally created by @rafi-hibob on GitHub (Nov 10, 2025).
Original GitHub issue: https://github.com/hoppscotch/hoppscotch/issues/5571

Is there an existing issue for this?

I have searched existing issues and this bug hasn't been reported yet

Platform

Web App

Browser

Chrome

Operating System

macOS

Bug Description

What happened?

When I send a request to an API running locally, e.g. localhost:9000/healthcheck with the Hoppscotch Browser Extension, I'm getting the following error:

Failed running request on extension

What I expected is for the request to be sent

Steps to reproduce

Install Hoppscotch Browser Extension
Configure Hoppscotch Interceptor to use the browser extension
Create a request with a URL on localhost
Send request
See error

Screenshots

Additional context

Interceptor used (if request-related): Browser

Logs and Console Output (if available)

I'm seeing this on the console whenever I hit the Send button:

index.ts:321 TypeError: Failed to fetch
    at $00d783be9e26ef46$var$fetchUsingAxiosConfig (chrome-extension://amknoiejhlmhancpahfcfcfhllgkpbld/index.js:77:23)
    at $00d783be9e26ef46$var$handleSendRequestMessage (chrome-extension://amknoiejhlmhancpahfcfcfhllgkpbld/index.js:213:44)
(anonymous) @ console.js:36
executeExtensionRequest @ index.ts:321
await in executeExtensionRequest
execute @ index.ts:403
execute @ kernel-interceptor.service.ts:158
(anonymous) @ network.ts:36
Promise.then
n6t @ network.ts:25
(anonymous) @ RequestRunner.ts:498
Promise.then
ksi @ RequestRunner.ts:439
P @ Request.vue:359
R.onClick.w.<computed>.w.<computed> @ Request.vue:80
ZAe @ runtime-core.esm-bundler.js:199
Ry @ runtime-core.esm-bundler.js:206
t @ runtime-dom.esm-bundler.js:730
i @ helpers.js:97

Deployment Type

Hoppscotch Cloud

Version

Happens on Hoppscotch Cloud and on Self-Hosted v2025.10.0

Originally created by @rafi-hibob on GitHub (Nov 10, 2025). Original GitHub issue: https://github.com/hoppscotch/hoppscotch/issues/5571 ### Is there an existing issue for this? - [x] I have searched existing issues and this bug hasn't been reported yet ### Platform Web App ### Browser Chrome ### Operating System macOS ### Bug Description ## What happened? When I send a request to an API running locally, e.g. `localhost:9000/healthcheck` with the Hoppscotch Browser Extension, I'm getting the following error: ``` Failed running request on extension ``` What I expected is for the request to be sent ## Steps to reproduce 1. Install Hoppscotch Browser Extension 2. Configure Hoppscotch Interceptor to use the browser extension 3. Create a request with a URL on `localhost` 4. Send request 5. See error ## Screenshots <img width="776" height="740" alt="Image" src="https://github.com/user-attachments/assets/83154331-980f-4a61-86c3-1db7596c3dae" /> ## Additional context Interceptor used (if request-related): Browser ## Logs and Console Output (if available) I'm seeing this on the console whenever I hit the `Send` button: ``` index.ts:321 TypeError: Failed to fetch at $00d783be9e26ef46$var$fetchUsingAxiosConfig (chrome-extension://amknoiejhlmhancpahfcfcfhllgkpbld/index.js:77:23) at $00d783be9e26ef46$var$handleSendRequestMessage (chrome-extension://amknoiejhlmhancpahfcfcfhllgkpbld/index.js:213:44) (anonymous) @ console.js:36 executeExtensionRequest @ index.ts:321 await in executeExtensionRequest execute @ index.ts:403 execute @ kernel-interceptor.service.ts:158 (anonymous) @ network.ts:36 Promise.then n6t @ network.ts:25 (anonymous) @ RequestRunner.ts:498 Promise.then ksi @ RequestRunner.ts:439 P @ Request.vue:359 R.onClick.w.<computed>.w.<computed> @ Request.vue:80 ZAe @ runtime-core.esm-bundler.js:199 Ry @ runtime-core.esm-bundler.js:206 t @ runtime-dom.esm-bundler.js:730 i @ helpers.js:97 ``` ### Deployment Type Hoppscotch Cloud ### Version Happens on Hoppscotch Cloud and on Self-Hosted v2025.10.0

kerem added the

bug

need testing

labels

2026-03-16 23:22:41 +03:00

kerem commented

2026-03-16 23:22:52 +03:00

Author

Owner

@matifanger commented on GitHub (Nov 11, 2025):

same

edit: i fixed it, just reinstall extension

@matifanger commented on GitHub (Nov 11, 2025): same edit: i fixed it, just reinstall extension

kerem commented

2026-03-16 23:22:57 +03:00

Author

Owner

@rafi-hibob commented on GitHub (Nov 12, 2025):

Thanks @matifanger, that did the trick!

Not sure how, though, considering the extension was last updated a year ago 🤔

@rafi-hibob commented on GitHub (Nov 12, 2025): Thanks @matifanger, that did the trick! Not sure how, though, considering the extension was last updated a year ago 🤔