Moin,

I just encountered a mailto: URI with an unencoded white space, i.e.:

"""
mailto: [email protected]
"""

Now, RFC6068 says that "Whitespace and comments within <local-part> and
<domain> MUST NOT be used.  They would not have any operational
semantics."

Now I am wondering, though, how an implementation should treat such a
whitespace.

a) Ignore the whitespace, i.e., process mailto:[email protected]
b) Reject processing the URI all together

I can kind of see both options (after all, 'not have any operational
semantics' is somewhat similar to 'act as if it was not there', even
though this was likely not meant by the text. ;-))

Any thoughts on that?

With best regards,
Tobias

-- 
Dr.-Ing. Tobias Fiebig
T +31 616 80 98 99
M [email protected]
Pronouns: he/him/his
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