OSM tiles needs a Referer HTTP Header

[PanierAvide]

Hello,

I just tried your extension (which is very cool!), and I see that OSM tiles are missing Referer HTTP header, leading to this display:

This corresponds to https://wiki.openstreetmap.org/wiki/Blocked_tiles#Referer_is_required

If the tile mentions "Referer is required" then you were automatically blocked because your application/website is not sending HTTP Referer headers, but doing so is required by the tile usage policy. This block will resolve itself once you make the necessary changes to your application, without further intervention necessary.

Apparently, a Leaflet update to release >= May 2026 would solve this automatically: https://wiki.openstreetmap.org/wiki/Referer#leaflet

Best regards

[PanierAvide]

My bad, the issue doesn't come from the extension, but from my Firefox settings 😅 If this happens to anyone, just click on "Disable" in the "Enhanced Tracking Protection" menu (left of the address bar). Once disabled, extension works as expected. I made an issue in appropriate repo to fix this webcompat/web-bugs#227292

Best regards

[nobkd]

The extension doesn't set a referer header for tile requests, but I don't know how to set this option for extension pages, I'll try looking into it.