Always get "do you want to open or save ..." when use IE to access the elasticsearch

This is a simple question - when I use IE to access the elasticsearch instance, I always get a pop-up window aksing "do you want to open or save _search ..." and I need to confirm and select an external program to view the json result returned.

But with Chrome or firefox the result will show up inside the browser. Not sure what causes this difference and how I can let IE to display the result directly.

I am using IE9 on windows 7

Thanks.

Yeah, Chrome and Firefox both allow native display of json (and there are plugins for them that allow automatic pretty printing of it). Have you tried the suggestion at http://www.codeproject.com/Tips/216175/View-JSON-in-Internet-Explorer ?