Having an ampersand in a querystring parameter

Question

I'm a bit new to javascript and I'm having a minor problem:

I'm trying to redirect to a page (which then performs a redirect) in javascript. I'm setting the window.location like so:

window.location = "./RedirectPage.aspx?ReturnUrl=page.aspx?key=val&amp;key2=val2";

Now, on RedirectPage.aspx when it's trying to redirect to the page that I passed in as the ReturnUrl, it is parsing key2=val2 as being another querystring parameter for RedirectPage instead of the ReturnUrl.

It makes sense that it does that, but that's not what I am trying to do... any idea how I might solve this?

Your ampersands have been encoded somewhere. You'll need to examine where the encoding is happening. — kinakuta
– kinakuta, Commented Apr 30, 2012 at 15:38

Theron Luhn · Accepted Answer · 2012-04-30 15:38:14Z

22

You want to URL encode the ReturnUrl querystring.

window.location = "./RedirectPage.aspx?ReturnUrl="+encodeURIComponent("page.aspx?key=val&amp;key2=val2");

answered Apr 30, 2012 at 15:38

Theron Luhn

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gen_Eric · Accepted Answer · 2012-04-30 15:38:18Z

3

Try this:

window.location = "./RedirectPage.aspx?"+encodeURIComponent("ReturnUrl=page.aspx?key=val&key2=val2")

You need to escape the ampersand (for use in a query string).

answered Apr 30, 2012 at 15:38

gen_Eric

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1 Comment

Steven Evers Over a year ago

So close. As it turned out, ReturnUrl= needed to be outside of the encodeURIComponent. +1 to both you and Theron, but his was more correct. Thank you.

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