According to documentation, sys::Uri.encodeQuery is supposed to encode given map conforming to application/x-www-form-urlencoded MIME type which means the following:

Alphanumeric and -, ., _ characters are not encoded, spaces are replaced with +, and everything else is percent-encoded (line-endings are replaced with encoded CRLF).

Now it encodes parameter map conforming to RFC-3986 which is a standard for uri queries but not for POST-request form data.

This is a serious issue resulting in malformed post-request building by sys::WebClient.postForm method which uses sys::Uri.encodeQuery to encode form data.

I don't think I fully understand

Consider this example:

echo(Uri.encodeQuery(["string":"Some string with spaces!"]))

results in:

string=Some%20string%20with%20spaces!

but according to standard it should print:

string=Some+string+with+spaces%21

Promoted to ticket #2052 and assigned to brian

ok, will look

Ticket resolved in 1.0.65

Looks like it worked correctly when query is part of URI, but just didn't work for that static helper method encodeQuery. Fixed across all native implementations.