Is cache control: pre-check and post-check headers still supported by IE?

Question

I found that Internet Explorer 5, or perhaps IIS 4.0, introduced support for the pre-check and post-check check and control headers. I could not find a lot of information if they are still supported in later versions such as IE 8, 9, 10 and 11.

I want to remove support for them in the application, but I want the data to no longer be used.

Answer 1

According to the responses of your tweet from people who know what they are talking about, pre-check and post-check headers may be supported, but their use is not recommended.

(poster only)