[Building Sakai] LTI launch to URLs on ports other than 80

[Adrian Fish]

Are any load balancers involved? If a load balancer is forwarding the LTI
launch and changing the port in the process, the OAuth validation will blow
up. The phenomenon is described in
https://jira.sakaiproject.org/browse/BLTI-197.

Cheers,
Adrian.


On 17 April 2013 00:47, Sean Keesler <sean.keesler at threecanoes.com> wrote:

> While working on an LTI integration with a tool that was running in
> tomcat running on port 8080 I noticed that I received an error.
>
> "This request requires HTTP authentication (launch.no.validate:
> signature_invalid)."
>
> However, I don't get that error (the tool launches fine from an LTI
> request) when I run apache with mod_proxy in front of tomcat on port
> 80.
>
> Any ideas why that might be?
>
>
>
> Sean Keesler
> 326 Stone Quarry Rd
> Ithaca, NY 14850
> 607-227-0276
> sean.keesler at threecanoes.com
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