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11-07-2017 02:02 AM - edited 11-30-2017 08:16 AM
Hi @trunguyen
This article may be of help to you:
https://community.tealiumiq.com/t5/iQ-Tag-Management/JavaScript-Code-Extension/ta-p/11925
Preloader scope is the ability to scope a JavaScript to before utag.js has started running. This allows for set up code, parsing code, or occasionally the odd JS library to be loaded.
The full article on scope can be found here: https://community.tealiumiq.com/t5/iQ-Tag-Management/Extensions/ta-p/13649
However here is a TL;DR version
The other scopes are:
Additionally, for All Tags Scope, you have the additional options:
In addition, there are also Run Once options for these, whereas the name suggests these will only run once.
I hope that helps explain Preloader and scopes in general.
Adrian
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