The trouble is that the meaning of "tilda" in urls (as a "normal character") competes with its meaning in TeX (as non-breakable space). Our system uses some heuristics, which obviously is not the best one. (We'll improve this.)
In case you are curious, the reason why it failed here (and not in the other link) was that using the curly braces in the math formula fooled our heuristics to think that the \href commands ends sooner then it actually did.
Anyways, thanks for pointing this out and sorry for inconvenience,
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CSI of Charles University
Re: Trouble with ~ in \href links
Sorry for late response. It works now.
The trouble is that the meaning of "tilda" in urls (as a "normal character") competes with its meaning in TeX (as non-breakable space). Our system uses some heuristics, which obviously is not the best one. (We'll improve this.)
In case you are curious, the reason why it failed here (and not in the other link) was that using the curly braces in the math formula fooled our heuristics to think that the \href commands ends sooner then it actually did.
Anyways, thanks for pointing this out and sorry for inconvenience,
Robert