I was typing a search in the docs and when I hit return I saw this:
Is this a bug?
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It is and WRI is aware of it, I've already reported this after I faced it for:
CASE:3838362 [...] It does appear as though our Documentation Center search tool doesn't handle the "1*^2" query very well. I have gone ahead and filed a report with our developers so that they can further investigate and look to address the issue. [...]
It seems that the problem is with
* character, though it works standalone but with something more it breaks documentation search.