The issue happens when searching on https://forum.mobilism.org
An account is needed, so I created one and then created a request in insomnia to login on this url : https://forum.mobilism.org/ucp.php?mode=login
The cookies are then stored by insomnia, and I created a request to search with a keyword on this url : https://forum.mobilism.org/search.php?sr=topics&sf=titleonly&keywords=test
This request works fine and returns the search results as it would in a web browser.
But then when generating a get or curl request, the page returned doesn't contain the results and asks to login (although the cookies are in the request).
I don't see what the difference is in between the insomnia request and the one with curl or wget.