folo can't subscribe my custom-written route

[DZDZzzZ]

Platform

Desktop - Windows

Describe the bug

After setting up my own instance, I can access the official routes via URL and subscribe to them on Folo. However, while my custom-written route can be accessed via URL (https://rsshub.dzloveqxy.qzz.io/javdatabase/idol/erika-ozaki) and subscribed to on other RSS readers, they cannot be subscribed to on Folo. I also tried importing the subscription source, which worked, but it resulted : 503 Service Unavailable 503 Service Unavailable.

Entry ID

https://rsshub.dzloveqxy.qzz.io/javdatabase/idol/erika-ozaki

Relevant Information

url: https://rsshub.dzloveqxy.qzz.io/javdatabase/idol/erika-ozaki

Reproduction Video

No response

Environment

I'm using Folo on Windows 11.
My RSSHub is self-hosted via Docker on my NAS, and I'm accessing it through Cloudflare Tunnels.

Validations

• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A, please open a GitHub Discussion instead.
• This issue is valid

Contributions

• I am willing to submit a PR to fix this issue
• I am willing to submit a PR with failing tests (actually just go ahead and do it, thanks!)

[DZDZzzZ]

I found that if I import my routes into Folo via OPML, its subscription link is converted to start with rsshub:// instead of https://rsshub.dzloveqxy.qzz.io/, even though I haven't submitted these routes to the official rsshub.