Requesting ashx Web Handler is showing dialog to download the ashx file?

I have created a Login.ashx Web Handler to authenticate user by using the following REST Request:

http://192.0.0.0/Pages/LoginPage.ashx?Username=anonymous&Password=123

when I wanted to test my handler, I opened a browser and pasted the link, dialog asked me if I want to save this file of ".ashx",

Any Guide or help would be greatly 开发者_如何转开发appreciated.

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All was my fault in the response content type I was doing the following:

was:

context.Response.ContentType = "text/text";

now:

context.Response.ContentType = "text/xml";