I received this error "Disallowed Key Characters"

[eluser]suba[/eluser]
Hi
THANKS
My mistake:
<input type="field_type" name=\ field_name" value="" />


This was Message is very useful to me
..


You can check the form that sends data to your page, i.e.:

if there is a code
<input type="field_type" name=" field_name" value="" />

if there is an unnecessary space in the field name Firefox removes it and everything is ok, but IE doesn’t make this cleaning, and this is a problem….