Tex images should be regenerated directly

[TriKri]

I'm trying to write Tex code in this forum, but it's really annoying since the image generated won't be updated when I change the tex code and press "preview post". I think this is a necessity for it to work properly; if a change is made to the latex code you have to be able to see what it looks like and if something with the new code is wrong.

By the way, my web browser is FF 3.6.13, I don't know if that has anything to do with it. I've noticed that if I reload the page by pressing the refresh button (or by going back and the forward again in the browsing history) I will get the new image that is generated for the code.

 

[berkeman]

I'm trying to write Tex code in this forum, but it's really annoying since the image generated won't be updated when I change the tex code and press "preview post". I think this is a necessity for it to work properly; if a change is made to the latex code you have to be able to see what it looks like and if something with the new code is wrong.

We've just gotten used to clicking the Refresh button in our browsers whenever we change Latex code. Yes it is annoying, but for some reason, this is a difficult thing to fix.

 

[TriKri]

Yes, when I noticed that clicking refresh would bring up the new image it was quite okay. Isn't the problem that the web browser thinks that the image still looks the same since it has the same name, and therefore doesn't reload it? In that case I think the problem would be solved by giving the regenerated image another name, but maybe this has already been tried out?

 

[DrGreg]

I've just discovered a new aspect to this bug which I don't remember anyone mentioning before. As well as affecting previews, it seems it can sometimes affect posted messages too -- if you go back to re-edit a message you have already posted, and change the LaTeX, after posting you may find the old equation being displayed until you refresh the page (even if you previously refreshed the preview page to get the correct equation).