Regex match function in Javascript

Question

I am using a positive lookahead regex to get the matched string, but it gives me Syntax error in regular expression in IE8 what am I doing wrong. I want to match the very 1st occurrence.

Matching input

<IMG title="Configuration older than 90 days" alt=true src="http://indwdev:6130/include/images/expired.png"><IMG title="Converted configuration" alt=true src="http://indwdev:6130/include/images/convert.png">

My regex str.match(/(?<=Converted configuration" alt=)[\w]+(?=)/)

Here is a jsfiddle link.

Answer 1

Javascript doesn't support positive lookbehinds in its regexes. You can use

str.match(/Converted configuration" alt=([\w]+)/)[1]