DNS rebinding attacks protection in Rails 6

02-Sep-2019 2430
It is common practice to run a Rails app using a custom domain locally. app.lvh.me is very common. We also use ngrok.io sometimes to interact with third party services. If you are using a custom domain on a Rails 6 app, you will see an error with the very first request itself when you hit app.lvh.me in the browser.
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