So Google just killed the BACKSPACE key for navigating back on webpages. That sucks! I guess I'm one of the few 0.04% users who use it a lot..
Luckily it seems the made an extension to re-add the feature to Chrome.
Get it here: https://chrome.google.com/webstore/detail/go-back-with-backspace/eekailopagacbcdloonjhbiecobagjci
Source (pic and extension): https://productforums.google.com/forum/#!topic/chrome/D4VMOXTxPwg