Version 1.4 breaks uploads with transformations #106
Description
In the latest version of the repository 1.4, lib/utils.js line 341, there is a check for width.startsWith("auto"). In prior versions <=1.3, the check is width == "auto". The modification to use startsWith expects that the parameter being passed in is a string. If it is a number, (as it was for me), the function throws an unhandled exception.