Last few days, with no exception I never achieved to get the page reloaded after question is sent. I just see the loading animation but when I open my profile in another tab, I can see that the question was sucessfully sent.
I use Firefox 19 I think.
Edit: Sending this question I was able to check the request - it is processed and received corectly. This is what my browser gets:
Edit II: Same happens for editing!