Sharepoint 2010 web part & IE 11 - targets document mode 8… APIs may not be available

Question

I am running some javascript (d3.js, sp.js) in a web part on a sharepoint 2010 site. Everything runs fine when I use chrome or firefox, however when I open the page in IE 11 it does not load correctly and I see the warning:

The attached page targets document mode 8. Some console APIs and features may not be available.

I've tried using the emulator as IE 10 or Edge, but then nothing loads. Any thoughts or suggestions? Thanks!

Update:

I added compatibility mode and emulate IE 10, however it errors at AllItems.aspx, Unable to set property 'outerHTML' of undefind or null reference. If i click play through, everything loads ok.

Answer 1

Ok so the problem was that Sharepoint 2010 was forcing IE11 to render in IE8. I ended up changing the master file (v4.master) for the specific sharepoint site and editing the <meta> to default to IE=10. It did not affect the other sharepoint sites within my larger sharepoint site, and seems to be working. Thanks, Trevor, for the lead!