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mod_compat_dialback: Workaround for Dialback with servers that violate RFC 6120 ยง 4.7.2
author Kim Alvefur <>
date Sun, 11 Oct 2015 15:39:23 +0200
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summary: Workaround for Dialback with some servers that violate RFC 6120

This module provides a workaround for servers that do not set the `to`
attribute on stream headers, which is required per [RFC6120]:

> ## 4.7.2. to
> For initial stream headers in both client-to-server and
> server-to-server communication, the initiating entity MUST include the
> 'to' attribute and MUST set its value to a domainpart that the
> initiating entity knows or expects the receiving entity to service.

As a side effect of [this issue](,
Prosody 0.10 will be unable to do [Dialback][xep220] with servers that
don't follow this.

# Known servers affected

* Openfire 3.10.2 (and probably earlier versions)