When editing a student's grades or comments under Manage Grades in onRecord > Procedures > Grading in Chrome v57, users may receive the error: This page isn't working, along with the error code ERR_BLOCKED_BY_XSS_AUDITOR.
Chrome recently released code to help prevent potentially malicious code from running in the browser. This change can cause Grading Comments with the word "script" in them to inadvertently cause this error to occur. This can happen while recording or reviewing grades. To get around this, try using a different browser and/or have the teacher re-word their comment.