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The new params.expect method in Rails 8 improves parameter filtering, addressing issues with malformed input and enhancing security. It provides a cleaner, more explicit way to enforce the structure and...

...types of incoming parameters. What changed Replaces require and permit: Combines both methods for concise parameter validation. Explicit Array Handling: Requires double array syntax to define arrays of hashes, improving...

...If different, it would redirect users to the generated/expected path. expected_path = url_for(params.to_unsafe_h) # ❌ this is not safe! if expected_path != request.original_fullpath redirect_to expected_path...

...an Open Redirect vulnerability. It's as simple as passing a host=evil.tld URL parameter. Rails would see url_for(..., host: "evil.tld") and happily generate a URL to that foreign...