Why a search text is unusable, or undefined when it is not blank. Checked after
the NFKC normalisation search() applies, so an ideographic space (U+3000) counts
as blank too. Upstream answers an empty searchText with HTTP 400 and runs a
whitespace-only one as is, so a blank or missing text never reaches the API.
Why a search text is unusable, or
undefinedwhen it is not blank. Checked after the NFKC normalisationsearch()applies, so an ideographic space (U+3000) counts as blank too. Upstream answers an emptysearchTextwith HTTP 400 and runs a whitespace-only one as is, so a blank or missing text never reaches the API.