Thought someone might know of a script out there, or know how to update the favicon per section of a site. There's strong colours running through each section of a build I'm working on and I thought it might be a nice UI touch to update the colour of the favicon depending on what section you're on. These could be an array of icons, but something that would force a change, rather than just adding the favicon link rel in each section.
I know Gmail can update the favicon with un-read/new emails.
Any help/ideas would be appreciated.
Cheers, R
You're on the right track with using the link rel's on every page, but the trick to forcing the favicon refresh is to append a number at the end of the icon file as a parameter that's always changing (time is the safest bet).
Example with php:
<?php
echo '<link rel="shortcut icon" href="http://www.yoursite.com/favicon.ico?t=' . time() . '" />';
?>
Doing this makes the browser think the file is new every time it sees it, thus avoiding the caching issue. I hope this points you in the right direction!
You can have a different favicon per page. You'll just need to add the following code to each HTML file:
<link rel="shortcut icon" href="/YourIcon.ico" type="image/x-icon" />
来源：https://stackoverflow.com/questions/14763010/new-update-favicon-per-page