Import util/util.js. This was being imported implicitly when code was importing isImage, and other methods. These were moved into services, which meant that util.js was no longer being explicitly imported. This broke the code as we use _.indexOf that is extended in this code.
Import util/util.js. This was being imported implicitly when code was importing isImage, and other methods. These were moved into services, which meant that util.js was no longer being explicitly imported. This broke the code as we use _.indexOf that is extended in this code.

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