Illegal string offset fix by scottalan.
A defect remediation and a couple of enhancements to the field:
Defect fix: #2504541: Hidden Structured Text Component Produces Warning Upon Submission
For basic operation see https://www.drupal.org/project/simple_gmap
A brief overview of the changes since Drupal7 :-
This module implements a FieldFormatter plugin as required by the new Drupal8 ecosystem.
A new Twig template is provided which can be overridden if necessary.
This project is actively maintained.
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