I know a working bypass for Chromebooks
Alright, this works by overloading the extension. First you need to copy the blocked website to your clipboard and go down to the bottom right of your screen and click on the right side of the taskbar and you should see a settings wheel, click it and scroll down untill you see "Show home button" and enable it then paste the blocked website under new tab page and you can close that menu then open chrome and go to the top right and you should see a house icon next to reload and when you hover over it it says "open home page" now all you need to do is rapidly click that button untill the website unblocks, it might take a minute but it works I exploited this to my school and everyone uses it. Best of luck l. Hack On!
Alright, this works by overloading the extension. First you need to copy the blocked website to your clipboard and go down to the bottom right of your screen and click on the right side of the taskbar and you should see a settings wheel, click it and scroll down untill you see "Show home button" and enable it then paste the blocked website under new tab page and you can close that menu then open chrome and go to the top right and you should see a house icon next to reload and when you hover over it it says "open home page" now all you need to do is rapidly click that button untill the website unblocks, it might take a minute but it works I exploited this to my school and everyone uses it. Best of luck l. Hack On!