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[GH-ISSUE #740] [Request] Support Scripting, Breakpoint and Others tools for Websocket protocol #734

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opened 2026-03-03 19:21:25 +03:00 by kerem · 14 comments

kerem commented

2026-03-03 19:21:25 +03:00

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Originally created by @4nif on GitHub (Dec 23, 2020).
Original GitHub issue: https://github.com/ProxymanApp/Proxyman/issues/740

Originally assigned to: @NghiaTranUIT on GitHub.

Proxyman version? (Ex. Proxyman 2.15.1)

macOS Version? (Ex. mac 10.15.7)

Steps to reproduce

Expected behavior

Support scripting, breakpoint and other tools such as map local, remote for Websocket protocol

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Originally created by @4nif on GitHub (Dec 23, 2020). Original GitHub issue: https://github.com/ProxymanApp/Proxyman/issues/740 Originally assigned to: @NghiaTranUIT on GitHub. ### Proxyman version? (Ex. Proxyman 2.15.1) ### macOS Version? (Ex. mac 10.15.7) ### Steps to reproduce ### Expected behavior - Support scripting, breakpoint and other tools such as map local, remote for Websocket protocol ### Screenshots (optional)

kerem added the

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2026-03-03 19:21:25 +03:00

kerem commented

2026-03-03 19:21:25 +03:00

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@NghiaTranUIT commented on GitHub (Dec 23, 2020):

Hi @4nif, I would like to collect more requests from other users in order to start implementing this feature since it’s quite challenging to support debugging tools with Websocket 🧐

Thank you for opening this ticket 👍

@NghiaTranUIT commented on GitHub (Dec 23, 2020): Hi @4nif, I would like to collect more requests from other users in order to start implementing this feature since it’s quite challenging to support debugging tools with Websocket 🧐 Thank you for opening this ticket 👍

kerem commented

2026-03-03 19:21:25 +03:00

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@NghiaTranUIT commented on GitHub (Dec 23, 2020):

I might support Breakpoint for WS since it might be easier I believe.

Can you share with me what tasks you would like to achieve with WS?

@NghiaTranUIT commented on GitHub (Dec 23, 2020): I might support Breakpoint for WS since it might be easier I believe. Can you share with me what tasks you would like to achieve with WS?

kerem commented

2026-03-03 19:21:26 +03:00

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@4nif commented on GitHub (Dec 25, 2020):

@NghiaTranUIT for starter

ability to breakpoint websocket tcp handshake (changes payload or header, etc)
modify/update websocket messages after websocket connection established

additionally I want to be able to perform local mock and streaming websocket message payload from proxyman to the client app 💯

@4nif commented on GitHub (Dec 25, 2020): @NghiaTranUIT for starter - ability to breakpoint websocket tcp handshake (changes payload or header, etc) - modify/update websocket messages after websocket connection established additionally I want to be able to perform local mock and streaming websocket message payload from proxyman to the client app 💯

kerem commented

2026-03-03 19:21:26 +03:00

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@NghiaTranUIT commented on GitHub (Dec 25, 2020):

ability to breakpoint websocket tcp handshake (changes payload or header, etc)

This feature seems to be easy because, behind the scene, the WS/WSS will make an HTTP/HTTPS request (with Upgrade: websocket header), so I can modify the Breakpoint to capture it.

modify/update websocket messages after websocket connection established

It's a huge task as I estimate, let me collect more feature requests and consider soon 👍

@NghiaTranUIT commented on GitHub (Dec 25, 2020): > ability to breakpoint websocket tcp handshake (changes payload or header, etc) This feature seems to be easy because, behind the scene, the WS/WSS will make an HTTP/HTTPS request (with `Upgrade: websocket` header), so I can modify the Breakpoint to capture it. > modify/update websocket messages after websocket connection established It's a huge task as I estimate, let me collect more feature requests and consider soon 👍

kerem commented

2026-03-03 19:21:26 +03:00

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@Floperoid commented on GitHub (Sep 21, 2021):

Also map remote for websocket connection would be great feature. It's working in Charles now, might give you some ideas

@Floperoid commented on GitHub (Sep 21, 2021): Also map remote for websocket connection would be great feature. It's working in Charles now, might give you some ideas

kerem commented

2026-03-03 19:21:26 +03:00

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@phaseOne commented on GitHub (Apr 29, 2022):

I too would like to use map remote, so that when developing locally, I can redirect connections in my browser from our dev RabbitMQ instance wss://broker.dev.example.com to a local instance at ws://locahost:15675.

Can also confirm that this works in Charles today if you need it.

@phaseOne commented on GitHub (Apr 29, 2022): I too would like to use map remote, so that when developing locally, I can redirect connections in my browser from our dev RabbitMQ instance `wss://broker.dev.example.com` to a local instance at `ws://locahost:15675`. Can also confirm that this works in Charles today if you need it.

kerem commented

2026-03-03 19:21:26 +03:00

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@zh-d-d commented on GitHub (May 14, 2022):

This is a great feature

@zh-d-d commented on GitHub (May 14, 2022): This is a great feature

kerem commented

2026-03-03 19:21:26 +03:00

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@helsonxiao commented on GitHub (Jul 6, 2022):

I need scripting to add query params for ws. Hope this can be implemented soon.

@helsonxiao commented on GitHub (Jul 6, 2022): I need scripting to add query params for ws. Hope this can be implemented soon.

kerem commented

2026-03-03 19:21:26 +03:00

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@phaseOne commented on GitHub (Jul 6, 2022):

If you need this feature right now, it’s possible with mitmproxy addons, though you will have to accept using an app other than Proxyman.

@phaseOne commented on GitHub (Jul 6, 2022): If you need this feature right now, it’s possible [with mitmproxy addons](https://docs.mitmproxy.org/stable/addons-examples/#websocket-simple), though you will have to accept using an app other than Proxyman.

kerem commented

2026-03-03 19:21:26 +03:00

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@NghiaTranUIT commented on GitHub (Jul 6, 2022):

Thanks for all your requests. It seems it's reasonable to start implementing the Breakpoint for WS. I will checkout 👍

@NghiaTranUIT commented on GitHub (Jul 6, 2022): Thanks for all your requests. It seems it's reasonable to start implementing the Breakpoint for WS. I will checkout 👍

kerem commented

2026-03-03 19:21:26 +03:00

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@mprice-banno commented on GitHub (Aug 11, 2022):

Adding my vote for breakpoint, and if possible scripting, for Websockets. Currently using Burp when I have to play with Websockets and it's not up to Proxyman's standard! Scripting would be really nice, as in my use case I need to use the request in part of the response.

@mprice-banno commented on GitHub (Aug 11, 2022): Adding my vote for breakpoint, and if possible scripting, for Websockets. Currently using Burp when I have to play with Websockets and it's not up to Proxyman's standard! Scripting would be really nice, as in my use case I need to use the request in part of the response.

kerem commented

2026-03-03 19:21:26 +03:00

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@4nif commented on GitHub (Sep 30, 2022):

Hopefully this feature can be implemented soon @NghiaTranUIT

@4nif commented on GitHub (Sep 30, 2022): Hopefully this feature can be implemented soon @NghiaTranUIT

kerem commented

2026-03-03 19:21:26 +03:00

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@rilham97 commented on GitHub (Oct 5, 2023):

I hope this feature can be add soon, so I just paid to your product only

Here their feature https://portswigger.net/burp/documentation/desktop/testing-workflow/websockets/manipulating-websocket-messages

@rilham97 commented on GitHub (Oct 5, 2023): I hope this feature can be add soon, so I just paid to your product only Here their feature https://portswigger.net/burp/documentation/desktop/testing-workflow/websockets/manipulating-websocket-messages

kerem commented

2026-03-03 19:21:27 +03:00

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@NghiaTranUIT commented on GitHub (Oct 6, 2023):

Hey folks, thanks for all input here 👍

I suppose that I can implement the WebSocket Repeater like what Burp does at: https://portswigger.net/burp/documentation/desktop/testing-workflow/websockets/manipulating-websocket-messages

To @Floperoid and @phaseOne Map Remote for Websocket is already done: https://github.com/ProxymanApp/Proxyman/issues/1218

@NghiaTranUIT commented on GitHub (Oct 6, 2023): Hey folks, thanks for all input here 👍 I suppose that I can implement the WebSocket Repeater like what Burp does at: https://portswigger.net/burp/documentation/desktop/testing-workflow/websockets/manipulating-websocket-messages --------- To @Floperoid and @phaseOne Map Remote for Websocket is already done: https://github.com/ProxymanApp/Proxyman/issues/1218