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This change allows the disabling of fallback used to access old, insecure sessions, and rewrite them as secure sessions. The fallback was originally added as part of the mitigation of CVE-2019-25025 several years back. However, this fallback mechanism was added over 5 years ago. In many cases, or at least in our case, the expiry on old, insecure, sessions has long since passed. We'd like the ability to disable the fallback entirely as it will never be a valid path for us. See: rails#151 Also, we had to improve our patch for `ActionDispatch::Assertions::RoutingAssertions::WithIntegrationRouting` to handle middleware correctly. This is the same implementation as was added in Rails 8.0. See: rails/rails#54705
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This change allows the disabling of fallback used to access old, insecure sessions, and rewrite them as secure sessions. The fallback was originally added as part of the mitigation of CVE-2019-25025 several years back.
Motivation
This fallback mechanism was added 4 years ago. In many cases, or at least in our case, the expiry on old, insecure, sessions has long since passed. We'd like the ability to disable the fallback entirely as it will never be a valid path for us.