hpohlmeyer / msw-send-beacon-loop

A bug reproduction of an infinite request loop when using sendBeacon with msw

MSW response patching loop with sendBeacon

Description

Response patching does not work with a request triggered by navigator.sendBeacon. ctx.fetch(req) does not seem to bypass msw and triggers the same request over and over again, causing an infinite request loop.

Steps to reproduce

1. Check out the repro: git clone https://github.com/hpohlmeyer/msw-send-beacon-loop.git
2. Run npm install in the root folder
3. Run npm start
4. Go to http://localhost:3002/
5. Open the network tab in the devtools
6. Click on the "Trigger request" button

• You will see an infinite request loop