It was clear to everyone at the time that Dnt had to be an explicit opt in and advertisers would ignore it if it was set by default. Microsoft persisted and the

It was clear to everyone at the time that Dnt had to be an explicit opt in and advertisers would ignore it if it was set by default. Microsoft persisted and therefore undermined the spec. Here's an article from the time: https://arstechnica.com/information-technology/2012/08/microsoft-sticks-to-its-guns-keeps-do-not-track-on-by-default-in-ie10/ https://arstechnica.com/information-technology/2012/08/micro...