Question

58

Detect whether browser is IE 7 or lower?

rated 0 times [ 63] [ 5] / answers: 1 / hits: 15916 / 13 Years ago, mon, may 23, 2011, 12:00:00

So i am going to add a redirect to my site to toss every one that is using ie 7 or lower off to a different page and came up with this JavaScript, but it seems to have stopped working.

<script type=text/javascript>

 if (/MSIE (d+.d+);/.test(navigator.userAgent)){ //test for MSIE x.x;

  var ieversion=new Number(RegExp.$1) // capture x.x portion and store as a number

   if (ieversion<=8)

    window.location = ie.html 

   }

   window.location = main.html

</script>

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answered 13 Years ago lidialyrick · Accepted Answer

Your code is always resulting to having gone to main.html. Even when the code falls into <8, you'll fall out of the if into setting to main.

Consider refactoring by either:

setting a return after setting to ie.

or

var redir=main.html;

if (/MSIE (d+.d+);/.test(navigator.userAgent))

{ 

   var ieversion=new Number(RegExp.$1);

   if (ieversion<=8)

   {

      redir = ie.html;

   }

}

window.location = redir;