I just learned about this setting after finally getting frustrated of clicking “Proceed.” Geez I wish I knew about this simple setting long ago… so much time wasted! I do lots of local development and we’ve had team members include ssl certs in repositories, or type in the following command “thisisunsafe”, etc. Who knew the solution was so simple 👍
Now we can simply get around that by copying and pasting the following command into your browser
chrome://flags/#allow-insecure-localhost
You will then be taken to Chrome’s development flags page as shown in the screenshot below. Simply enable it and restart Chrome

Now you’re all set to kick up a local dev server and never have to click proceed ever again.