Hi,

Thanks again.

On Wednesday, July 22, 2026 at 5:14:16 PM UTC+2 Michael Plate wrote:

Hi, 

Am 22.07.26 um 16:39 schrieb Vincent B.: 
> 
> Thanks a lot for your feedback. 
> * 
> * 
> *npm run start:dev* 
> 
> Runs fine and without issues, with a fully functional UI 
> 
> rpnrunstartdev-success.png 
> 
> But for some reason *node dist/server/main.js* (adjusted for Windows) 
> from the dspace source folder and dspace-ui-deploy folder bot gives me 
> the same error as previously 

[…] 

and you have copied the config.example.yml to config.yml in the config 
folder of the UI and adjusted the "host" to the name of your machine ? 


I didn't at the moment because the configuration documentation specified to 
pick one option between environment variables and config files.

I did try both options though: config files and/or environment variables.
All led to the same issues.

 

"allowedHosts" seems to be part of webpack.


Should I configure some allowedHosts variable somewhere?


 



Can you retrieve the server backend (http(s)://<your-machine>/server ) 
in the browser ? 

Yes, the backend is working fine and is accessible from the browser of the 
frontend UI VM.

Here is the *Response Headers* section from the backend

200 success

cache-control: no-cache, no-store, max-age=0, must-revalidate
content-language: en
content-length: 9901
content-type: application/hal+json;charset=UTF-8
date: Wed, 22 Jul 2026 16:03:48 GMT
dspace-xsrf-token: [obfuscated]
expires: 0
pragma: no-cache
strict-transport-security: max-age=31536000 ; includeSubDomains
vary: Access-Control-Request-Headers
x-content-type-options: nosniff
x-frame-options: DENY
x-powered-by: ARR/3.0
x-xss-protection: 0

 

Michael 


Vincent 

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