Recently, official support for Internet Explorer ended. Ref this question (status-complete):
Due to dumb IT policies at work, out of my control, Internet Explorer is the only browser available to me. I'm a regular user of the site, and now I have to see this banner every time I visit, on every page I visit - without being able to close the banner or update my browser!
I understand the move to drop official support, and I understand the need for a banner, but can you please add a close button which hides it for at least the current browser session?
By example, Github has a similar message with a helpful "Ignore" button: