Re: [jetty-users] IE11 shows only "invalid_preface" when HTTP2 is enable

[Michele Rossi <michele.rossi@xxxxxxxxx>]

hi,

the problem with just using --module=http2 is that you end up including a sub-module such as alpn-impl/alpn-1.8.0_45.mod which contains this:

[exec]

-Xbootclasspath/p:lib/alpn/alpn-boot-8.1.3.v20150130.jar

This means that a new VM is spawned from the original one which I really don't like.

I prefer to pass the correct boot classpath to jetty by using the JAVA_OPTIONS environment variable which is used by the init.d script to launch jetty.

I don't think this has anything to do with the problem though.

As I said HTTP2 works correctly in Chrome which wouldn't be possible if I had messed the config so bad.

I am sure I have done something wrong somewhere though, for example is this line correct?

jetty.alpn.protocols=h2,h2-17,h2-16,h2-15,h2-14,http/1.1

If I put http/1.1 first then Chrome does not seem to negotiate h2.

I am wondering whether that would fix IE11 though, will try and let the group know.

thanks,

Michele

On 29 July 2015 at 18:00, <jetty-users-request@xxxxxxxxxxx> wrote:

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Today's Topics:

   1. IE11 shows only "invalid_preface" when HTTP2 is   enabled
      (Michele Rossi)
   2. Re: IE11 shows only "invalid_preface" when HTTP2 is       enabled
      (Joakim Erdfelt)


---------- Forwarded message ----------
From: Michele Rossi <michele.rossi@xxxxxxxxx>
To: jetty-users@xxxxxxxxxxx
Cc: 
Date: Wed, 29 Jul 2015 16:47:27 +0200
Subject: [jetty-users] IE11 shows only "invalid_preface" when HTTP2 is enabled

hi,

I am experimenting with Jetty 9.3.0 and HTTP2 which I have enabled as follows:

--lib=lib/http2/*.jar

--lib=lib/jetty-alpn-client-${jetty.version}.jar

--lib=lib/jetty-alpn-server-${jetty.version}.jar

etc/jetty-http2.xml

etc/jetty-alpn.xml

It all works fine on Chrome (and thanks to a handy plugin I can see that Chrome is actually using HTTP2) but on IE11 the page doesn't render at all and all I get is "invalid_preface" on a white page.

I am probably doing something glamorously wrong - any tips much appreciated.

thanks,

Michele

 

---------- Forwarded message ----------
From: Joakim Erdfelt <joakim@xxxxxxxxxxx>
To: JETTY user mailing list <jetty-users@xxxxxxxxxxx>
Cc: 
Date: Wed, 29 Jul 2015 08:26:56 -0700
Subject: Re: [jetty-users] IE11 shows only "invalid_preface" when HTTP2 is enabled

Do not enable http2 that way

If you are using --lib= you are not enabling it properly.

Use --module=http2 instead of those 3 --lib lines.

Joakim Erdfelt / joakim@xxxxxxxxxxx

On Wed, Jul 29, 2015 at 7:47 AM, Michele Rossi <michele.rossi@xxxxxxxxx> wrote:

hi,

I am experimenting with Jetty 9.3.0 and HTTP2 which I have enabled as follows:

--lib=lib/http2/*.jar

--lib=lib/jetty-alpn-client-${jetty.version}.jar

--lib=lib/jetty-alpn-server-${jetty.version}.jar

etc/jetty-http2.xml

etc/jetty-alpn.xml

It all works fine on Chrome (and thanks to a handy plugin I can see that Chrome is actually using HTTP2) but on IE11 the page doesn't render at all and all I get is "invalid_preface" on a white page.

I am probably doing something glamorously wrong - any tips much appreciated.

thanks,

Michele

 

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