BUG: You need to check for user_data.address before accessing its properties

[sahava]

If user_data.address doesn't exist in the eventModel, then this line (and all subsequent attempts to access user_data.address will throw an error):

ConversionsAPI-Tag-for-GoogleTagManager/template.tpl

Line 190 in 953ee44

(eventModel.user_data != null ? hashFunction(eventModel.user_data.address.first_name) : null);

So it should be something like:

(event_model.user_data != null && event_model.user_data.address != null ? ...

[sahava]

PR here: #6