[This text is NOT in the mouseover preview.]
This is the mouseover preview, which can show a fair amount of text so let’s make this sentence pretty long.
That is all.
Erm, turns out this test wasn’t super helpful since I’m on my tablet. Did it work?
I’ll check later when I get to my computer.
Worked great. Use square brackets to hide spoilerish things is a great tip.
I posted about this a while back ago. I thought I discovered something new only to be disappointed. here
Yep. Works here, too, on my laptop.
Running Firefox under Windows 7 (professional) and the preview does not include your bracketed text. In short, I think it worked as you expected.