Symptoms

Opening a record on IE11 breaks the form and gets an exception "Error Message: service-now.com is not response recover webpage "

Release

ALL

Environment

IE11

Cause

Invalid text contained in the record

Resolution

Export the XML of the record and check if invalid invisible chars in the field. Notice in the below text there are invisible chars, 

Please remove the chars in the XML and update it again.

Most Probable Cause

These invalid might be inserted usually when you are copy pasting from a text editor (Best guess copying from a Word document using "Ctrl + a") . Possibly when you are copying an entire document and pasting it in a field.