The New Tag Assistant Preview Mode for Google Tag Manager
Summary
I can’t count how many times I have gone to check the implementation on an event or a link only for it to reload the page and remove all this information from the debug panel. The new version of the preview a debug mode is linked to the Google Tag Assistant extension and as a result alleviates the main pain points highlighted above. The benefits of this are that it makes GTM more reliable and more robust, as well as protecting itself away from browser extensions that target third party cookies Now if there are multiple Google products running on the site, AdWords tags for example, you have the option to select within the preview pane, and debug them in isolation. For someone who uses Google Tag manager daily the new changes are very welcome and my overall experience will be improved – I for one will not miss the docked preview mode that we have had to live with since GTM’s inception. The change to first party cookies is always welcome, as it means the tool we know and love should continue to work in the post GDPR world.