Today (Mar, 15, 2016) chrome stopped working with the --disable-web-security flag. I have tried the following options described in various posts: 1) Kill all instances of Ch
This doesn't work anymore, since Chrome 80. You have to specify a non-default --user-data-dir
to make it work now.
Original answer:
You can use your existing data dir, if you don't want to create a new one.
So on Linux the command to start unsafe Chrome will be something like this:
google-chrome --user-data-dir=/home//.config/google-chrome --disable-web-security
But don't use this Chrome instance for anything except development or debugging, since it's open for a vast amount of web attacks.