lambda@edge origin-response handler with cloudfront + s3 origin custom headers

Question

Hello, I've a function that works for `origin-response`.

I've added in my *Cloudfront* distro custom header, call it `X-My-Header` with a custom value (say `a`)

I want to read this custom header in the `origin-response` function (by using _Typescript_, shouldn't matter).

This header is no where to be found in either `request.origin.s3.customHeaders` nor `request.origin.custom.customHeaders`.

This is super difficult to debug. If someone has a suggestion or a direction I'll be extremely happy to hear.

Thanks

amitizle · Accepted Answer

Oh man, I was just missing creating a new invalidation :facepalm:

RoB · Answer

Have you tried accessing the header via the event?
For example below
 
```
const response = event.Records[0].cf.response;
const headers = response.headers;
console.log('Headers: "${headers}"');
```

If you still cant see them log the **event** and then view the json offline and confirm your header is actually present in the event.

amitizle · Answer

Thanks for the response, but no it's not that.
I've created manually a function + λ distro and seems like it logs everything correctly in the freshly created one, in the `origin-response` invocation in `request.origin.s3.customHeaders`.

lambda@edge origin-response handler with cloudfront + s3 origin custom headers

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