The Google Chrome browser will not allow a user to visit a website when it detects a SSL certificate/HSTS error. This is right thing in terms of security, but during development I often hit this block which is annoying. There is an easy way to bypass this Chrome block, simply key-in this phrase when Chrome presents the ‘Invalid Cert’ page:
thisisunsafe
The Chrome browser essentially has a listener on the keyboard for the key press sequence thisisunsafe. When that sequence is entered the window will then drop the block and the page will render, but with a ‘Not Secure’ warning in the location bar:
This seems to be an internal/undocumented Chrome feature so there is not a whole lot of info about it. This Stackoverflow article gives the most info about it: Does using ‘badidea’ or ‘thisisunsafe’ to bypass a Chrome certificate/HSTS error only apply for the current site? [closed]