Is the source registration request sent separately from going to a landing page? [question]

[maudnals]

Question from developer:

Is it correct that header-based source registration will be implemented to the current flow where a landing page is navigated in the top frame? In other words, a registration request is not sent separately from going to a landing page?

[maudnals]

Answer:

The header-based source registration occurs in a separate request from the navigation request to the landing page. When the anchor element is clicked, the browser starts a new "background" request based on the attributionsrc value in order to get the attribution source parameters. The existing request made as part of the anchor element href is not affected; it will continue normally.