IE7 - Object Does not Support this property or method (INDEXOF)

[faiyth]

I did a bunch of searches but couldn't find any help.

I'm getting an error on my indexof in IE7, works fine in Firefox/etc.

here's the code:

var prefix = "";
var relative = document.getElementById('url').value;
if(relative.indexOf("http")<=0) {
prefix = "

http://";

}
window.open(prefix + relative);

It is the indexOf that is causing the error. Any help rewriting this code please?

 

[vacunita]

What is the 'url' element that you are referencing?
The only way I get this error is if the value isn't actually a string. Otherwise your code works fine in IE7.

----------------------------------
Phil AKA Vacunita
----------------------------------
Ignorance is not necessarily Bliss, case in point:
Unknown has caused an Unknown Error on Unknown and must be shutdown to prevent damage to Unknown.

 

[feherke]

Hi

if(relative.indexOf("http")<=0) {
prefix = "

http://";

}

Are you sure about that condition ? For example in the string '

http://tek-tips.com/

' the [tt]indexOf('http')[/tt] is 0. So your code will add one more protocol to it.

Feherke.

http://free.rootshell.be/~feherke/

 

[faiyth]

Thanks! That bit about the url not coming in as a string was the issue. I converted it to a string and the entire thing works. Thanks!

Here's the working code:

var prefix = "";
var relative = String(document.getElementById('url').value);
if(relative.indexOf("http")<=0) { prefix = "

http://";

}
window.open(prefix + relative);