Google Chrome developers have proposed adding support for a new HTML tag to allow web developers from ensuring its users aren’t tracked by third party cookies.
All current web browsers allow third-party iframes to communicate with the website that has embedded them. This is something that unscrupulous web developers often exploit to invade the privacy of the visitors and track their online movements.
While ferrying data across websites through an iframe was permissible earlier, with the move towards disabling third-party cookies altogether, browser developers are looking for means to restrict an iframe from sending data back to the original website that embedded it.
