I finally found a solution.
First, on my template page, I add this:
This script only contains a declaration of a variable with the timestamp:
In the code snippet for Piwik tracker, I put that:
It works on IE8 now.
If you have a better solution, please share it, I would be happy to see it.
First, on my template page, I add this:
<html>
<head>
<!--[if lte IE 8]>
<script src="/public/javascripts/piwik-extension.js'" type="text/javascript" charset="UTF-8"></script>
<![endif]-->
This script only contains a declaration of a variable with the timestamp:
var PIWIK_startingTime = new Date().getTime();
In the code snippet for Piwik tracker, I put that:
<script type="text/javascript">
var _paq = _paq || [];
// Detection of Browser name and version
var whoIam = navigator.sayswho= (function(){
var ua= navigator.userAgent,
N= navigator.appName, tem,
M= ua.match(/(opera|chrome|safari|firefox|msie|trident)\/?\s*([\d\.]+)/i) || [];
M= M[2]? [M[1], M[2]]:[N, navigator.appVersion, '-?'];
if(M && (tem= ua.match(/version\/([\.\d]+)/i))!= null) M[2]= tem[1];
return M.join(' ');
})();
// Check if the browser is IE6, IE7 or IE8...
if (/MSIE [6,7,8]/.test(whoIam)) {
// In that case, calculate manually the gt_ms (Average Generation Time)
var avg_gt_ms = new Date().getTime() - PIWIK_startingTime;
_paq.push(["setGenerationTimeMs", avg_gt_ms]);
}
_paq.push(["trackPageView"]);
_paq.push(["enableLinkTracking"]);
...
It works on IE8 now.
If you have a better solution, please share it, I would be happy to see it.