# Running Old Devtools | |
This package launches your current version of Chromium, and an old version of Chromium. | |
It then opens the DevTools of the old Chromium inside the new Chromium. This can be | |
used to test devtools_compatibility.js. Remember to recompile after making changes | |
to devtools_compatibility.js. | |
## Usage | |
First run `npm install` in this directory. Then run `node index.js <revision_number>`. |