Change record status: 
Project: 
Introduced in branch: 
8.x
Description: 

The progress bar javascript function had two parameters - updateCallback and errorCallback - that have been removed from the function signature. The parameters were not being used, and implementing them relied on eval() which is not recommended practice.

Impacts: 
Module developers
Themers
Updates Done (doc team, etc.)
Online documentation: 
Not done
Theming guide: 
Not done
Module developer documentation: 
Not done
Examples project: 
Not done
Coder Review: 
Not done
Coder Upgrade: 
Not done
Other: 
Not done