Canvas - Known Issue - Internet Explorer Unsupported
Instructure has ended support for the use of the Internet Explorer browser with Canvas and has blocked access from IE to all instances of Canvas.
AffectsAll users trying to access Canvas via the Internet Explorer browser.
This issue is present as of August 30, 2019. The vendor does not have any current plans to roll back the changes.
Users who are able should switch to a supported browser. A list of support browsers for use with Canvas are available here: https://community.canvaslms.com/docs/DOC-10720