go - Escape exclamation mark in http request -


i have url like

http://app.chat.com/avert!callbcak.htm

to request.

i created request golang

req, _ := http.newrequest("get", "http://app.chat.com/avert!callbcak.htm", nil) fmt.printf("%v\n", req.url.string())

result is

http://app.chat.com/avert%21callbcak.htm

which not going work, website needs url exclamation mark not escaped.

how can request url correctly?

from http://tools.ietf.org/html/rfc3986

section 2, on characters, has been rewritten explain what
characters reserved, when reserved, , why are
reserved, when not used delimiters generic
syntax. mark characters typically unsafe decode,
including exclamation mark ("!"), asterisk ("*"), single-quote
("'"), , open , close parentheses ("(" , ")"), have been moved
reserved set in order clarify distinction between
reserved , unreserved and, hopefully, answer common
question of scheme designers. likewise, section on
percent-encoded characters has been rewritten, , uri normalizers
given license decode percent-encoded octets

this means ! unfortunate choice of separator because although grammar allows use in segment (as part of pchar non-terminal) part of reserved non-terminal.

as read rfc ambivalent ! reservedness, depending upon context in used.

escaping character seems safe assumption make since recipient "licenced decode percent-encoded octet". should consider using separator or decoding entity on endpoint.


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