function readOnly(count){ }
Starting November 20, the site will be set to read-only. On December 4, 2023,
forum discussions will move to the Trailblazer Community.
+ Start a Discussion
Timothy SchowTimothy Schow 

Internet Explorer 11 doesn’t support CSP

Our company uses IE11 as our standard browser.  Does "Internet Explorer 11 doesn’t support CSP" mean our pages with Lightning components won't work or that our org won't be affected by the LockerService when we are using IE11?
Greg_ThomsonGreg_Thomson
Timothy,

CSP is short for Content Security Policy, a new feature that most modern browsers aside from IE11 support.  What this allows a website (like Salesforce) to do is restrict which servers files can be loaded from, which servers your browser can communicate with, etc.  This has the advantage of keeping your data more secure, and limiting the chances of you being a victim of a client side hacking attempt.  

Moving forward, in order to use Lightning at all, you will need a CSP enabled browser.  IE11 won't be able to access the new Lightning experience.

Greg Thomson
Lightframe.co