Question

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rated 0 times [ 21] [ 1] / answers: 1 / hits: 22838 / 15 Years ago, mon, february 8, 2010, 12:00:00

I am trying to pass a string via HTTP request which has one of the character as % in the URL query string.

url = url + ?q= + str + &block= + block;  // str contains the '%' character

But on the ColdFusion page where I'm sending this information is returning following error:

Element Q is undefined in URL.

How can I encode the % sign in a URL?

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3 Years ago

answered 15 Years ago minab · Accepted Answer

You should url-encode all the values you are passing as query parameters, but the url-encoding for % is %25

Update: if you're constructing the query parameters in javascript, you probably want to do:

url=url+?q=+encodeURIComponent(str)+&block=+encodeURIComponent(block)

(Updated again with ZeissS' very helpful suggestion to use encodeURIComponent instead of escape. See also http://xkr.us/articles/javascript/encode-compare/)