URL encoding the space character: + or %20? - Stack Overflow
https://stackoverflow.com/questions/1634271/url-encoding-the-space-character-or-20
WebJun 6, 2014 · For HTTP URLs, a space in a path fragment part has to be encoded to "%20" (not, absolutely not "+"), while the "+" character in the path fragment part can be left unencoded. Now in the query part, spaces may be encoded to either "+" (for backwards compatibility: do not try to search for it in the URI standard) or "%20" while the "+" …
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