Query chinese character wih proxy page problem

[ClementLau]

I have a QueryTask with proxy page to query street name.
if query.text = [english street name], can find street name without problem.
if query.text = [chinese character street name], error occur "[RPC Fault faultString="Error #2032" faultCode="null" faultDetail="null"]".

On the other hand, when i remove proxyURL property from QueryTask, both english and chinese can find.
But in my situation, i must user proxyURL property for security issue.

Anyone can help?

[IvanBespalov]

Clement,
query task parameters are request query strings.

Take a look to Example usage tag in this help page.

try it:
encodeURIComponent()

query.text = encodeURIComponent(chinese character street name)