>Thanks, Sam. Nuria, that's what I was getting at - if using the EL JS library would some sort of new method be needed so that these impressions arena't undercounted?If we had a lot of users with DNT, maybe, from our tests when we enabled that on EL this is not the case. Your team has already run experiments on this functionality and they can speak as to the projection of numbers.On Fri, Jan 19, 2018 at 3:05 AM, Adam Baso <abaso@wikimedia.org> wrote:Thanks, Sam. Nuria, that's what I was getting at - if using the EL JS library would some sort of new method be needed so that these impressions arena't undercounted?On Fri, Jan 19, 2018 at 4:49 AM, Sam Smith <samsmith@wikimedia.org> wrote:______________________________On Thu, Jan 18, 2018 at 9:57 PM, Adam Baso <abaso@wikimedia.org> wrote:Adding to this, one thing to consider is DNT - is there a way to invoke EL so that such traffic is appropriately imputed or something?The EventLogging client respects DNT [0]. When the user enables DNT, mw.eventLog.logEvent is a NOP.I don't see any mention of DNT in the Varnish VCLs around the the /beacon endpoint or otherwise but it may be handled elsewhere. While it's unlikely, there's nothing stopping a client sending a well-formatted request to the /beacon/event endpoint directly [1], ignoring the user's choice.-Sam_________________
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