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vercel/packages/python
Andy McKay ba498f3a8e [python] Cope with duplicate header values (#9205)
There are times when a request can arrive for a Python function with headers as a list. One of those examples is this header `x-vercel-proxied-for` which apparently is set twice. Example:

`[b'x-vercel-proxied-for', [b'207.81.134.243', b'172.71.147.74']]`

I took a quick scan through the other Python server implementations and I don't think any of them manipulate the value of the HTTP headers, the way the ASGI one does so I think we are good there.

To reproduce:

`curl https://..../ -H "foo: bar" -H "foo: bar"`

Will fail.

Fixes: https://github.com/vercel/vercel/issues/9132
2023-02-03 17:01:02 +00:00
..
2023-02-01 23:26:52 +01:00