API Gateway Converting "%2f" to "/" in URL Parameter

[mittster]

It looks like Api Gateway is automatically turning the "%2f" to a "/". This causes request to fail. In this particular case the error message is 403, URL signature mismatch. Problematic url example:

https://scontent.xx.fbcdn.net/v/t39.25447-2/315991144_6377206065657734_5025935354679506890_n.mp4?_nc_cat=106&vs=e0ece699e5d69073&_nc_vs=HBksFQAYJEdHaWsxUktHOXpQX0NLZ1dBTXEzdjVlVHRiOUZibWRqQUFBRhUAAsgBABUAGCRHTlI1MVJKU3ZyWjZlYmtFQUM5WExHZ25HS0F6YnJGcUFBQUYVAgLIAQBLB4gScHJvZ3Jlc3NpdmVfcmVjaXBlATENc3Vic2FtcGxlX2ZwcwAQdm1hZl9lbmFibGVfbnN1YgAgbWVhc3VyZV9vcmlnaW5hbF9yZXNvbHV0aW9uX3NzaW0AKGNvbXB1dGVfc3NpbV9vbmx5X2F0X29yaWdpbmFsX3Jlc29sdXRpb24AHXVzZV9sYW5jem9zX2Zvcl92cW1fdXBzY2FsaW5nABFkaXNhYmxlX3Bvc3RfcHZxcwAVACUAHAAAJtLalcytxbYCFQIoAkMzGAt2dHNfcHJldmlldxwXQDQaXjU%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%3D%3D&ccb=1-7&_nc_sid=4ea082&efg=eyJ2ZW5jb2RlX3RhZyI6Im9lcF9oZCJ9&_nc_ohc=Cfpbu-XsZBsAX87uM0c&_nc_ht=scontent.fltn3-2.fna&oh=00_AfAJY6nikmbiUBPnm8G-_aKrghM7WeryZX3b0Sk4zrarZw&oe=63A51240&_nc_rid=089394793026750

Is there a workaround?