mod_rest: Catch and log errors in callback promise chain From the code it looks like it should be possible to reply to an error stanza, but it did not. Turns out I was saved by my local developer mode module which throws errors if an attempt is made to create an errror reply to an error stanza. However nothing collects this error from the promise, so all I got was confusion.

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labels:
- Statistics
summary: Collect statistics on client features
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Description
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This module measures the features supported by each connected client.

It requires mod\_cache\_c2s\_caps to be loaded on each VirtualHost to
provide the disco#info data.