Allowing "+" in the query string?

[eluser]neal789[/eluser]
Anyone know why [percent-sign]26 ("% 2 6" without the spaces) in a query string would give me a "The URI you submitted has disallowed characters." error? The translation of this code is a '&', but so what? Isn't that why we have URI codes? '%' is in my permitted characters, so I don't get it.

Code:

$config['permitted_uri_chars'] = 'a-z 0-9@~%.:_\-';

Many thanks for any help!

[eluser]Celso Soares[/eluser]
nothing that works for me
i tryed that

Code:

$config['permitted_uri_chars'] = 'a-z 0-9éèíìóòáàçúùãõ~%.:=+_\-';

and the error appear like that:
"Disallowed Key Characters."

[eluser]JulianM[/eluser]
What URL are to trying to load?
Please read my comment #8 . You are using single quotes instead of double quotes.

[quote author="Celso Soares" date="1312590246"]nothing that works for me
i tryed that

Code:

$config['permitted_uri_chars'] = 'a-z 0-9éèíìóòáàçúùãõ~%.:=+_\-';

and the error appear like that:
"Disallowed Key Characters."[/quote]