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Support HTTP Etags for frabxml/ical/... exports #492
Problem you are facing
Client applications which retrieve the schedule data from an Pretalx instance do need to load the file everytime. This increases the traffic for both the server and the client.
The Pretalx API should be able to provide and consume HTTP ETags.
I am maintaining the EventFahrplan project which consumes schedule data from the Pretalx API.