Pistrie
Is it possible to use a regex pattern in check_origin of a websocket?
In Corsica I can use a regex pattern for my CORS list, but when checking the Phoenix.Channels documentation I don’t see any mention of this. It seems like you can use a wildcard for subdomains, but not a regex pattern. Am I out of luck, or is there a solution?
For reference, here is the regex pattern that I want to apply: /^https:\/\/myapp(-staging)?(--[a-zA-Z0-9-]+)?\.web\.app\/?$/
Marked As Solved
chrismccord
The :check_origin config accepts an mfa tuple:
check_origin: {MyAppWeb.Auth, :my_check_origin?, []}
The MFA is invoked with the request %URI{} as the first argument, followed by arguments in the MFA list, and must return a boolean. So you can perfect your regex there as you wish 
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