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Question

Webpack Dev Server Not Working

  • September 26, 2025
  • 4 replies
  • 65 views

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I’ve been banging my head against a wall here. `block run` appears to run successfully but the webserver isn’t returning content and instead is returning a 404. A `block release` works successfully and I can see the `Hello World` in my extension. It’s running on port 9000 and it’s listening cause I get a response, it just doesn’t have any content.

Any ideas?

4 replies

Alexey_Gusev
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  • Brainy
  • September 29, 2025

Hi,

I have such warning
 

and then 

 

but I just continue developing and then release - it works OK.

I made a short video implementing a little edit to Base schema described HERE

 


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  • Author
  • New Participant
  • September 29, 2025

Thanks for sharing. Sounds like mine is not an isolated case but write/release/debug isn’t really a workflow I’m going to pursue.

Thanks again.


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  • Author
  • New Participant
  • September 30, 2025

I was wrong about the webpack dev server .. digging in more, it appears to be express not responding. Not sure how to amend the title or change this whatsoever but if anyone stumbles on it … my issue seems to be with express. Still digging.


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  • Author
  • New Participant
  • September 30, 2025

About to walk away from this but in case anyone stumbles upon this and feels like a hero I figured I’d mention that both the upstream and downstream servers respond for requests to `/bundle.js` (although it’s returned as a document) but none of the other assumed endpoints like `/ping` or even `/index.js` which is sitting in the `.tmp` directory return data and instead send a 404.