[SOLVED] Google Tag Manager: GA Content Experiment code not firing on home page

Google Tag Manager: GA Content Experiment code not firing on home page

I've created a Google Analytics Content Experiment in GA, copied the code, added it to my site's Google Tag Manager container, set it to trigger @

https://www.example.com
https://www.example.com/
https://www.example.com/h2/
https://www.example.com/h3/

However, every time I load https://www.example.com in any browser, I stay there and am not redirected to a variant.

GA says the experiment code is detected at /h2/ & /h3/ but not /.

The Tag Manager code is installed in the same Wordpress theme that all of the above pages use.

Help appreciated.

Solution

Not sure if you know but Content Experiment is now Google Optimize.

To debug this here is what I would do:

Make sure you follow the official GTM instructions which include setting up tag sequencing
Enable the GTM preview
If the Optimize tag doesn't trigger, GTM should tell you why (what trigger is failing, or what blocking trigger is being applied)
If the Optimize tag triggers BUT experiments don't, I would clear browser cache to remove earlier Optimize persistence and make sure the experiment rules match the page conditions (eg URLs)
Another reason might be Optimize timeout whereby Optimize snippets take too long to load

.async-hide { opacity: 0 !important} (function(a,s,y,n,c,h,i,d,e){s.className+=' '+y;h.start=1*new Date; h.end=i=function(){s.className=s.className.replace(RegExp(' ?'+y),'')}; (a[n]=a[n]||[]).hide=h;setTimeout(function(){i();h.end=null},c);h.timeout=c; })(window,document.documentElement,'async-hide','dataLayer',4000, {'GTM-XXXXXX':true});