Infinite Loop in ‎TopDownFormatter::FormatOnAreas

[mnadeem-mercedes-hpp]

The loop in ‎TopDownFormatter::FormatOnAreas has the tendency to become an infinite loop in some cases.

This deadly loop caused our web farm to go down and cause great inconvenience.

Steps to Reproduce the Behavior

Please run the MigraDoc solution
Issue.zip

It would be nice to have a cancellation token in methods with dynamic loops - A cancellation token in this method would have allowed me to detect and stop the infinite loop to save the application on runtime.

I have stopped using this plugin in the application I am currently working on, however I would like to use it again in the future once it gets stable.

[ThomasHoevel]

We fixed that infinite loop in the current internal build and fix will be included in the next Preview release.

We will not add a cancellation token in the foreseeable future.

Cause of the problem was a single paragraph with three large images that was too large to fit a single page. While this should not cause an infinite loop, it still is an unusual situation and thus the bug remained unfound for such a long time.