What is IE7 mode?
I'm developing a web app for a client. It works perfectly on my local machine, and perfectly from my server.
When I provided the code to my client, they deployed it to a QA server, and tested it on a machine (IE10 browser) within their firewall. Sure enough, it doesn't work.
After some research, I found this page: https://msdn.microsoft.com/en-us/library/ff955410(v=vs.85).aspx, which says
If the webpage is retrieved from a site in a domain on the Compatibility View list (and the list is active), IE7 mode is used (see "Understanding the Compatibility View List" at [MSDN-UnderstandingCompViewList]).
I found this helpful SO post about how to turn off Compatibility View: IE10 renders in IE7 mode. How to force Standards mode?
However, for my client - the "Display intranet sites in Compatibility View" is both checked and disabled (i.e., can't be unchecked).
So - my question is, "What does IE7 mode mean?"
Does it mean that any function/feature/bit of code that wasn't supported in IE7 won't work (e.g., no SVG?)
Or, something else?
IE7 mode means what it says on the tin.. any supported features releases above IE7 will not be supported. Only features that are in IE7 are supported.