Cant use openrouter with chatbox firefox

[stone-w4tch3r]

Describe the bug
问题描述
I configured openrouter + claude as Custom Model, but in chat error 405 appears each time I try to ask model. Same issue with gpt-4o model. I checked that model name is correct

To Reproduce
如何复现
Steps to reproduce the behavior:

1. Go to extension settings
2. Set API Mode to Custom Model
3. Configure OpenRouter's endpoint, model and key
4. Go to chat window
5. Send any text
6. Error 405 occurs

Expected behavior
期望行为
Normal response

Screenshots
截图说明

Please complete the following information):
请补全以下内容

• OS: Linux, Fedora 40 KDE
• Browser: Firefox 130.0.1 (64-bit)
• Extension Version: 2.5.8 (Latest)

I double checked that model-key-endpoint are fine via pure python request

[josStorer]

the api url should be complete (with /chat/completions)
https://openrouter.ai/api/v1/chat/completions

[stone-w4tch3r]

Oh, I see! Thanks

I checked, there was a default value with completions endpoint, but I overlooked it once pasted my url

Maybe we can add a hint here?
src/_locales/en/main.json:

{
  "Custom Model API Url": "Custom Model API Url (chat completions endpoint)",
}

I can create a PR if you find this useful