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[GH-ISSUE #656] An unknown error occurred whilst the proxy was processing your request. #230

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opened 2026-03-16 14:09:02 +03:00 by kerem · 6 comments

kerem commented

2026-03-16 14:09:02 +03:00

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Originally created by @Byron4j on GitHub (Mar 8, 2020).
Original GitHub issue: https://github.com/hoppscotch/hoppscotch/issues/656

When I use postwoman to access local tomcat server: http://localhost:8080，and enable proxy；
I get a 500 error， and tips like : An unknown error occurred whilst the proxy was processing your request.

Originally created by @Byron4j on GitHub (Mar 8, 2020). Original GitHub issue: https://github.com/hoppscotch/hoppscotch/issues/656 When I use postwoman to access local tomcat server: http://localhost:8080，and enable proxy； I get a 500 error， and tips like : An unknown error occurred whilst the proxy was processing your request. ![image](https://user-images.githubusercontent.com/18253211/76166004-3d521680-6196-11ea-95d4-504e91844faa.png)

kerem closed this issue

2026-03-16 14:09:07 +03:00

kerem commented

2026-03-16 14:09:13 +03:00

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@AndrewBastin commented on GitHub (Mar 8, 2020):

@NBTX

@AndrewBastin commented on GitHub (Mar 8, 2020): @NBTX

kerem commented

2026-03-16 14:09:18 +03:00

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@AndrewBastin commented on GitHub (Mar 8, 2020):

Umm, I just now read the issue description fully 😅

The proxy cannot connect to local servers. Please use the Postwoman browser extensions (Chrome or Firefox) to be able to send requests to local servers.

Thanks for trying Postwoman! 😄

@AndrewBastin commented on GitHub (Mar 8, 2020): Umm, I just now read the issue description fully 😅 The proxy cannot connect to local servers. Please use the Postwoman browser extensions ([Chrome](https://chrome.google.com/webstore/detail/postwoman-extension-for-c/amknoiejhlmhancpahfcfcfhllgkpbld) or [Firefox](https://addons.mozilla.org/en-US/firefox/addon/postwoman/)) to be able to send requests to local servers. Thanks for trying Postwoman! 😄

kerem commented

2026-03-16 14:09:23 +03:00

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@gasbi commented on GitHub (Mar 8, 2020):

I'm experiencing the same problem, and is certainly when trying to connect to localhost.

I have proxy enabled and chrome extension installed, and still getting the same error:

{  "success": false,  "data": {    "message": "An unknown error occurred whilst the proxy was processing your request."  }}

Am I missing something here to be able to connect to localhost?

Thanks!!

@gasbi commented on GitHub (Mar 8, 2020): I'm experiencing the same problem, and is certainly when trying to connect to localhost. I have proxy enabled and chrome extension installed, and still getting the same error: ``` { "success": false, "data": { "message": "An unknown error occurred whilst the proxy was processing your request." }} ``` Am I missing something here to be able to connect to localhost? Thanks!!

kerem commented

2026-03-16 14:09:28 +03:00

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@AndrewBastin commented on GitHub (Mar 8, 2020):

Well, the Proxy cannot talk to your local server because the proxy is in the internet and your local server isn't 😅 . Use the browser extension with the proxy disabled to access your local server.

Cheers! 😄

@AndrewBastin commented on GitHub (Mar 8, 2020): Well, the Proxy cannot talk to your local server because the proxy is in the internet and your local server isn't 😅 . Use the browser extension with the proxy disabled to access your local server. Cheers! 😄

kerem commented

2026-03-16 14:09:34 +03:00

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@AndrewBastin commented on GitHub (Mar 8, 2020):

I'm experiencing the same problem, and is certainly when trying to connect to localhost.

I have proxy enabled and chrome extension installed, and still getting the same error:
{  "success": false,  "data": {    "message": "An unknown error occurred whilst the proxy was processing your request."  }}
Am I missing something here to be able to connect to localhost?

Thanks!!

@NBTX is the proxy supposed to a message like this on failing to resolve a url, can we like get a proper axios like error thingy with error codes and stuff maybe ?

@AndrewBastin commented on GitHub (Mar 8, 2020): > I'm experiencing the same problem, and is certainly when trying to connect to localhost. > > I have proxy enabled and chrome extension installed, and still getting the same error: > > ``` > { "success": false, "data": { "message": "An unknown error occurred whilst the proxy was processing your request." }} > ``` > > Am I missing something here to be able to connect to localhost? > > Thanks!! @NBTX is the proxy supposed to a message like this on failing to resolve a url, can we like get a proper axios like error thingy with error codes and stuff maybe ?

kerem commented

2026-03-16 14:09:39 +03:00

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@AndrewBastin commented on GitHub (Mar 9, 2020):

If the issue persists, feel free to message below.

Closing the issue meanwhile.

@AndrewBastin commented on GitHub (Mar 9, 2020): If the issue persists, feel free to message below. Closing the issue meanwhile.

kerem referenced this issue

2026-03-17 00:11:51 +03:00

[PR #230] [MERGED] Documentation Cleanup #2497