I'm very interested in this as well.

On Wednesday, September 7, 2016 at 2:20:52 PM UTC-4, [email protected] wrote:
>
>  
>>
>>> 2) With TLS GRPC on the backend, ALB seems to fail for the same reason 
>>> (TLS/ALPN negotiation succeeds but protocol is not HTTP/2).
>>>
>>
>> That sounds like it doesn't support HTTP/2. I wouldn't be surprised if it 
>> didn't support HTTP/2 to the backend. Clients could be HTTP/2, but then it 
>> would convert it to HTTP/1.1. This is the same state as with Google Cloud 
>> Load Balancer and nginx. Amazon's blog post 
>> <https://aws.amazon.com/blogs/aws/new-aws-application-load-balancer/> also 
>> doesn't make it clear.
>>
>
> Yup, an AWS support rep just confirmed that ALB indeed does not support 
> HTTP/2 to the backend. I also pointed out that this should be stated more 
> clearly in the docs.
>
> Perhaps someday end-to-end HTTP/2 will become a reality :)
>
>>

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