Hi, I recently ran into a problem which I'm documenting here in the hope
it saves others some time (possibly also RC devs could be aware and
consider logging a warning)
The symptoms are that roundcube mostly works, but hangs with a
Saving/Sending message at the bottom of the screen if you try and
save/send. The browser is "frozen", in that you cannot click on other
items on the page, and it's necessary to close the browser tab or do a
full page reload to escape.
The resolution was to remove security headers from my default nginx config:
#add_header X-Frame-Options DENY;
#add_header X-Content-Type-Options nosniff;
I presume that the iframe option interferes with save/send process,
hence why it breaks. I think it's not unreasonable, however, just
documenting the problem here since it's a common option shown as a good
default for a tightly secured webserver setup.
Thanks to all developers for the excellent Roundcube product!
Ed W