Changing website favicon dynamically

javascript html dom favicon
SqlRyan picture SqlRyan · Nov 4, 2008 · Viewed 199k times · Source

I have a web application that's branded according to the user that's currently logged in. I'd like to change the favicon of the page to be the logo of the private label, but I'm unable to find any code or any examples of how to do this. Has anybody successfully done this before?

I'm picturing having a dozen icons in a folder, and the reference to which favicon.ico file to use is just generated dynamically along with the HTML page. Thoughts?

Answer

keparo picture keparo · Nov 4, 2008

Why not?

(function() {
    var link = document.querySelector("link[rel*='icon']") || document.createElement('link');
    link.type = 'image/x-icon';
    link.rel = 'shortcut icon';
    link.href = 'http://www.stackoverflow.com/favicon.ico';
    document.getElementsByTagName('head')[0].appendChild(link);
})();

Firefox should be cool with it.

edited to properly overwrite existing icons

Related questions

How can I change an element's class with JavaScript?

How can I change the class of an HTML element in response to an onclick or any other events using JavaScript?

Read More
How to make JavaScript execute after page load?

I'm executing an external script, using a <script> inside <head>. Now since the script executes before the page has loaded, I can't access the <body>, among other things. I'd like to execute some JavaScript …

Read More
How can I select an element by name with jQuery?

Have a table column I'm trying to expand and hide: jQuery seems to hide the td elements when I select it by class but not by element's name. For example, why does: $(".bold").hide(); // selecting by class works $("tcol1").hide(); // …

Read More