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[GH-ISSUE #1752] Send double request [bug] #557

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opened 2026-03-16 15:58:41 +03:00 by kerem · 20 comments

kerem commented

2026-03-16 15:58:41 +03:00

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Originally created by @hedior03 on GitHub (Aug 1, 2021).
Original GitHub issue: https://github.com/hoppscotch/hoppscotch/issues/1752

Originally assigned to: @AndrewBastin on GitHub.

Describe the bug
Every request I make from Hoppscotch is sent twice, 10ms apart.

To Reproduce
Steps to reproduce the behavior:

Send a Request to a service in localhost
Two requests are received instead of one

Expected behavior
Get one request.

Desktop (please complete the following information):

OS: MacOs
Browser: Brave Browser
Version 1.27.108 Chromium: 92.0.4515.107 (Official Build) (x86_64)

Originally created by @hedior03 on GitHub (Aug 1, 2021). Original GitHub issue: https://github.com/hoppscotch/hoppscotch/issues/1752 Originally assigned to: @AndrewBastin on GitHub. **Describe the bug** Every request I make from Hoppscotch is sent twice, 10ms apart. **To Reproduce** Steps to reproduce the behavior: 1. Send a Request to a service in localhost 2. Two requests are received instead of one **Expected behavior** Get one request. **Desktop (please complete the following information):** - OS: MacOs - Browser: Brave Browser - Version 1.27.108 Chromium: 92.0.4515.107 (Official Build) (x86_64)

kerem

2026-03-16 15:58:41 +03:00

closed this issue
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not reproducible
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kerem commented

2026-03-16 15:58:59 +03:00

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@liyasthomas commented on GitHub (Aug 1, 2021):

Deu to CORS policy in browsers, every request has a Preflight request.

Please make sure if the first request was a pre-flight request. Read more about this behavior on StackOverflow.

@liyasthomas commented on GitHub (Aug 1, 2021): Deu to [`CORS`](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS) policy in browsers, every request has a [Preflight request](https://developer.mozilla.org/en-US/docs/Glossary/Preflight_request). Please make sure if the first request was a pre-flight request. [Read more about this behavior on StackOverflow](https://stackoverflow.com/questions/15381105/what-is-the-motivation-behind-the-introduction-of-preflight-cors-requests).

kerem commented

2026-03-16 15:59:04 +03:00

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@hedior03 commented on GitHub (Aug 2, 2021):

I appreciate your answer, I checked the documentation and it doesn't seem to be this, given that both requests are exactly the same method of my request (GET or POST), and Preflight should be a OPTIONS method request.

GET

[02/Aug/2021 05:26:54] "GET /circles/unam-fciencias/rides/ HTTP/1.1" 200 52
==================================================


GET

[02/Aug/2021 05:26:54] "GET /circles/unam-fciencias/rides/ HTTP/1.1" 200 52

@hedior03 commented on GitHub (Aug 2, 2021): I appreciate your answer, I checked the documentation and it doesn't seem to be this, given that both requests are exactly the same method of my request (GET or POST), and Preflight should be a OPTIONS method request. ``` GET [02/Aug/2021 05:26:54] "GET /circles/unam-fciencias/rides/ HTTP/1.1" 200 52 ================================================== GET [02/Aug/2021 05:26:54] "GET /circles/unam-fciencias/rides/ HTTP/1.1" 200 52 ```

kerem commented

2026-03-16 15:59:09 +03:00

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@liyasthomas commented on GitHub (Aug 2, 2021):

Thanks for the detailed explanation. May I know whether if you've enabled any Hoppscotch interceptors in Settings? "Proxy mode" or "Extensions" ?

@liyasthomas commented on GitHub (Aug 2, 2021): Thanks for the detailed explanation. May I know whether if you've enabled any Hoppscotch interceptors in [Settings](https://hoppscotch.io/settings)? "Proxy mode" or "Extensions" ?

kerem commented

2026-03-16 15:59:14 +03:00

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@hedior03 commented on GitHub (Aug 2, 2021):

Since I'm testing something locally, I'm using the extension. But not any proxy.

@hedior03 commented on GitHub (Aug 2, 2021): Since I'm testing something locally, I'm using the extension. But not any proxy. ![Screenshot](https://user-images.githubusercontent.com/6667132/127825732-e1e2c1bf-e81b-4161-8cb3-81855d213eb6.png)

kerem commented

2026-03-16 15:59:19 +03:00

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@liyasthomas commented on GitHub (Aug 2, 2021):

Thank you, we'll look into it.

@liyasthomas commented on GitHub (Aug 2, 2021): Thank you, we'll look into it.

kerem commented

2026-03-16 15:59:24 +03:00

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@hedior03 commented on GitHub (Aug 2, 2021):

I just fixed it. I reckon that i had the PWA installed and both (PWA and website) were executing the request once I pressed Send.

I checked from a private window and realising that it worked fine, tried deleting all PWA installed. The only remaining problem is that i can't replicate the error.

Apologies for the concerns and thanks for your time.

@hedior03 commented on GitHub (Aug 2, 2021): I just fixed it. I reckon that i had the PWA installed and both (PWA and website) were executing the request once I pressed Send. I checked from a private window and realising that it worked fine, tried deleting all PWA installed. The only remaining problem is that i can't replicate the error. Apologies for the concerns and thanks for your time.

kerem commented

2026-03-16 15:59:29 +03:00

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@liyasthomas commented on GitHub (Aug 2, 2021):

Glad it worked out. Will track this behaviour and fix it as soon as possible.

@liyasthomas commented on GitHub (Aug 2, 2021): Glad it worked out. Will track this behaviour and fix it as soon as possible.

kerem commented

2026-03-16 15:59:34 +03:00

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@GorvGoyl commented on GitHub (Sep 19, 2021):

@liyasthomas I'm facing the same issue i.e. every call I make from hoppscotch web client (using chrome extension) hits my local api server twice! Both the requests are of type POST. Issue doesn't happen if I use some desktop client like Postman. let me know if you need further details.
Also, should I post a new bug since you closed this issue?

@GorvGoyl commented on GitHub (Sep 19, 2021): @liyasthomas I'm facing the same issue i.e. every call I make from hoppscotch web client (using chrome extension) hits my local api server twice! Both the requests are of type `POST`. Issue doesn't happen if I use some desktop client like Postman. let me know if you need further details. Also, should I post a new bug since you closed this issue?

kerem commented

2026-03-16 15:59:39 +03:00

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@liyasthomas commented on GitHub (Sep 19, 2021):

@GorvGoyl please provide more details on the issue you're having.

@liyasthomas commented on GitHub (Sep 19, 2021): @GorvGoyl please provide more details on the issue you're having.

kerem commented

2026-03-16 15:59:44 +03:00

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@GorvGoyl commented on GitHub (Sep 19, 2021):

OS: Win 10
Browser: Microsoft Edge Browser
Version 93.0.961.47 (Official build) (64-bit)

@liyasthomas let me know if I missed something

@GorvGoyl commented on GitHub (Sep 19, 2021): OS: Win 10 Browser: Microsoft Edge Browser Version 93.0.961.47 (Official build) (64-bit) @liyasthomas let me know if I missed something

kerem commented

2026-03-16 15:59:49 +03:00

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@liyasthomas commented on GitHub (Sep 19, 2021):

@GorvGoyl let me know how to reproduce the issue. Also have you enabled any interceptor like browser extension / proxy?

@liyasthomas commented on GitHub (Sep 19, 2021): @GorvGoyl let me know how to reproduce the issue. Also have you enabled any interceptor like browser extension / proxy?

kerem commented

2026-03-16 15:59:55 +03:00

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@GorvGoyl commented on GitHub (Sep 19, 2021):

Yes, I'm using browser extension.

To reproduce this issue, You could create a local nodejs server in VSCode (I'm using Firebase cloud functions) and make the rest api call (POST) to it from Microsoft Edge browser using https://hoppscotch.io/ with it's browser extension installed.

@GorvGoyl commented on GitHub (Sep 19, 2021): Yes, I'm using browser extension. ![image](https://user-images.githubusercontent.com/7106086/133926207-4992a3dd-1bdd-4227-8640-b71ffaeb8c22.png) To reproduce this issue, You could create a local nodejs server in VSCode (I'm using [Firebase cloud functions](https://firebase.google.com/docs/functions)) and make the rest api call (`POST`) to it from Microsoft Edge browser using https://hoppscotch.io/ with it's browser extension installed.

kerem commented

2026-03-16 16:00:00 +03:00

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@liyasthomas commented on GitHub (Sep 19, 2021):

Thanks for the detailed information. Will let you know once it's fixed. Thank you.

@liyasthomas commented on GitHub (Sep 19, 2021): Thanks for the detailed information. Will let you know once it's fixed. Thank you.

kerem commented

2026-03-16 16:00:05 +03:00

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@mandaputtra commented on GitHub (Oct 1, 2021):

I can confirm that for now, this bug is resolved. I don't see any double request when I test. Using Brave Browser (with latest Chromium). It should behave the same for Microsoft Edge/Chrome since it is just chromium based browser.

@mandaputtra commented on GitHub (Oct 1, 2021): I can confirm that for now, this bug is resolved. I don't see any double request when I test. Using Brave Browser (with latest Chromium). It should behave the same for Microsoft Edge/Chrome since it is just chromium based browser. ![Screenshot from 2021-10-01 08-57-10](https://user-images.githubusercontent.com/23342943/135553825-4c90a4ef-033d-485f-a8e1-ef8e4a384a22.png) ![Screenshot from 2021-10-01 08-59-12](https://user-images.githubusercontent.com/23342943/135553986-73712ed1-82d0-406c-8565-298ab2314d7a.png)

kerem commented

2026-03-16 16:00:10 +03:00

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@mandaputtra commented on GitHub (Oct 5, 2021):

This actually somewhat reproducible somewhat not. Could you open this one again @liyasthomas ? I can reproduce it on my windows machine but not on my linux one. Same browser ~ in the meantime I'll figure it out why it happen.

@mandaputtra commented on GitHub (Oct 5, 2021): This actually somewhat reproducible somewhat not. Could you open this one again @liyasthomas ? I can reproduce it on my windows machine but not on my linux one. Same browser ~ in the meantime I'll figure it out why it happen.

kerem commented

2026-03-16 16:00:15 +03:00

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@liyasthomas commented on GitHub (Oct 5, 2021):

Feel free to reopen if you can provide steps to reproduce the issue.

@liyasthomas commented on GitHub (Oct 5, 2021): Feel free to reopen if you can provide steps to reproduce the issue.

kerem commented

2026-03-16 16:00:20 +03:00

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@long2ice commented on GitHub (Oct 30, 2021):

Same issue here, use chrome PWA, but everything is fine after reinstall PWA

@long2ice commented on GitHub (Oct 30, 2021): Same issue here, use chrome PWA, but everything is fine after reinstall PWA

kerem commented

2026-03-16 16:00:25 +03:00

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@LaPoPvLe commented on GitHub (Mar 22, 2022):

same issue
in chrome, this is fine.
but pwa still send double request.like replay all request's header and content is same, not options method in cross domain.

@LaPoPvLe commented on GitHub (Mar 22, 2022): same issue in chrome, this is fine. but pwa still send double request.like replay all request's header and content is same, not options method in cross domain.

kerem commented

2026-03-16 16:00:30 +03:00

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@levrik commented on GitHub (Feb 27, 2023):

Having the same issue. I might had installed Hoppscotch as PWA before already but I'm not sure if it was on this exact device. The interesting part is that if I disable using the extension, a single POST request still hits the locally running backend but the UI tells me that it was unable to reach the endpoint (which is not true).

@levrik commented on GitHub (Feb 27, 2023): Having the same issue. I might had installed Hoppscotch as PWA before already but I'm not sure if it was on this exact device. The interesting part is that if I disable using the extension, a single `POST` request still hits the locally running backend but the UI tells me that it was unable to reach the endpoint (which is not true). <img width="557" alt="image" src="https://user-images.githubusercontent.com/9491603/221607865-c5f24e5c-f805-48ad-8616-a07dea68027d.png">

kerem commented

2026-03-16 16:00:35 +03:00

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@KrofDrakula commented on GitHub (Jan 25, 2024):

I just reproduced this bug when using Hoppscotch as a Chrome PWA with the browser extension used as proxy with no additional configuration.

Uninstalling the PWA and then reinstalling it looks like it resolved the issue for me so far.

@KrofDrakula commented on GitHub (Jan 25, 2024): I just reproduced this bug when using Hoppscotch as a Chrome PWA with the browser extension used as proxy with no additional configuration. Uninstalling the PWA and then reinstalling it looks like it resolved the issue for me so far.