How to replace href using javascript regex in Firefox?

Question

I try to change some links on a webpage using the following code for jQuery on Rails

$(function () {
  $('#lesson a').live('click', function () {
    $.getScript(this.href.replace(/^(http...[^\/]+)?\/+(.*)$/,'/ajax/\\$2'));
    return false;
  });
})

This trick works for Chrome and Safari, but fails (nothing happens on click) for Firefox and Opera. What can be wrong with the code?

EDIT1:

The webpage contains:

<div id="lesson">
  <a href="/subj1">Subject 1</a>
  ...
</div>

On click, a browser (i.e. Firefox and Opera) should make an ajax-request of /ajax/subj1.

instead of returning false you should function(e) { e.preventDefault(); /* your code */} — Jimmy
– Jimmy, Commented Jan 12, 2011 at 20:28

Kobi · Accepted Answer · 2011-01-13 06:41:02Z

2

You replace the string with '/ajax/\\$2'.
You have an extra backslash - if you expect the result /ajax/subj1, use '/ajax/$2'.

answered Jan 13, 2011 at 6:41

Kobi

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thanks! I've misread how one refers a regex part in javascript. It is interesting that it worked for some browsers.

Andy
– Andy

01/13/2011 07:52:23
Commented Jan 13, 2011 at 7:52
1

@Andrei - no problem! Sometimes you write something, and then blinded by it - even though it's right in your face :). Some browsers are very forgiving - they correct urls and even html, assuming the user mistyped it. For example, http:/google.com will work in most browsers, even though it isn't a valid url. IE auto corrects \ to / (or at least did 7 years ago - hadn't checked since), and probably collapses // to /, giving a correct result.

Kobi
– Kobi

01/13/2011 07:57:07
Commented Jan 13, 2011 at 7:57

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