Cool. Edited NOS and added ORF (Austria), which works fine now. Very happy!

I think that was a misunderstanding - at least for Swiss Teletext, it should be just the other way round. See, I have:

imageUrl=http://www.teletext.ch/pics/SF1/[page]-00.gif
subImageUrl=http://www.teletext.ch/pics/SF1/[page]-[2:subpage].gif

This is the usual pattern. You go to [page]-00.gif, which doesn't have a sub-page. Only sometimes there is no [page]-00.gif. The next thing you'd have to do then is check for [page]-01.gif - because that's either the first sub-page or the page is "irregular".

So with the current setting ("If subImageUrl doesn't work, it will fallback to imageUrl"), I never get Dexter to try [page]-01.gif if [page]-00.gif fails. It should be "If imageUrl doesn't work, it will fallback to subImageUrl for sub-page #1".

I thought for a moment that I could simply ignore all this and switch the lines like this:

subImageUrl=http://www.teletext.ch/pics/SF1/[page]-00.gif
imageUrl=http://www.teletext.ch/pics/SF1/[page]-[2:subpage].gif

That wouldn't work though, would it? You couldn't go to sub.page -02, -03... etc then, if I understood it correctly.

Anyway, an updated config how SF1 could maybe work is on the talk page now.


EDIT: ... just thought: maybe it's a good idea to not change the direction of the fallback, but just add the other fallback. so if imageUrl fails, you try subImageUrl - and when subImageUrl fails, you try imageUrl. - Just to make it more error tolerant. That wouldn't break anything, right?