Hello, @tjthomas3 Welcome to the Canvas Community! Internet Explorer 11 is a very old and no-longer-widely-used browser (please refer to W3Counter: Global Web Stats), and Microsoft itself is in the process of phasing out support for IE. We have to periodically have to update Canvas so that it can take advantage of the capabilities of more modern web technology in use by a majority of users and to guard against performance and critically to address security vulnerabilities with older browsers and technology. Here is a recent discussion around this topic:
Canvas and Internet Explorer
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