clarkwinkelmann I think something else is going on. Maybe a conflict with another plugin. If I figure it out I'll let you know. Even using this:
The composer wants to load, because the opacity backdrop appears. But, no form appears. And my composer form works otherwise. Just not trying to do these shortcut URLs. I wonder if it could be another z-index issue? I say another because I've had z-index issues with a couple other extensions.
Probably in some future version of Flarum, even if it's not until 1.1 or something, the z-indexes need to be tamed down. What I mean is, by default, I've seen Flarum z-indexes over "1000." I'm not so sure that's necessary. Z-indexes should be kept as low as possible to prevent from having to set a z-index at 999999 in the future.
But, that's a little off topic and may have nothing to do with this. 🙂