Example, statement: fm.action = "b.jsp? Relation = a b"; fm.submit (); our original intention to submit the value "A B" of the Relation to the web server. However, the result is unexpected. The server is "A B" with Request.GetParameter ("rate") on the server. This is because use fm.action = "b.jsp? Rate = a b"; when this approach, IE will not do again. It is recommended to implement a hidden domain. The steps are as follows: 1. Add hidden domain 2. Modify assignment mode: fm.relation.value = "a b"; 3. Submit
