Introduction
The EM.context is a data structure that has all the relevant data in the iFrame where the externalized module is implemented. The EM.context can be used to create some custom dataLayer objects required by some TMSs like Tealium and Adobe.
All the available parameters of the EM dataLayer can be found in the following link: https://github.com/EveryMundo/emDataStandards/blob/master/dataLayer/EM.context.json
How to find the EM.context
To find the EM.context in the iFrame go to the URL where the externalized module is placed and open ‘Console’ from Google Developer Tools.
In ‘Console’ access the iFrame using the ‘JavaScript context’: