If you are doing blacklisting of a large amount URLs, using the wildcard character (*) but still wish to have functionality to print, you will need to add the following URL to your URL Blacklist Exception list:


chrome://print


Other built-in Chrome OS URLs may need to be whitelisted for additional functionality.

Note that whitelisting chrome://*  will whitelist all of the below:


chrome://policy

chrome://extensions

chrome://system

chrome://flags

chrome://dns

chrome://downloads

chrome://bookmarks

chrome://history

chrome://memory

chrome://net-internals

chrome://quota-internals

chrome://sessions

chrome://settings

chrome://print


To view all the available chrome:// commands, type chrome://about/ in your chrome browser URL


Additional whitelisting for logging in to applications that use Google Credentials may be necessary:


accounts.google.com

https://www.google.com/accounts

https://appengine.google.com