How can I fix "400 Bad Request" errors on trying to access Canvas?

"400 Bad Request" errors can be solved by clearing cache and cookies. The cause is very difficult to identify and will differ from user to user. Anecdotal information leads us to believe Chrome is more susceptible to these errors and may be connected to extensions installed, and the length of the current browser session. If you are experiencing this issue often, you could consider trying a different browser such as Edge, Firefox, or Safari.

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I can't login! What's going on?

If you are experiencing issues logging into Canvas, here are some tips that may assist you. Please note that there are two different instances of Canvas that we support:

Residential Canvas, for degree programs, at canvas.harvard.edu
Professional Education (Exed) Canvas, for professional education modules and workshops, at exed.canvas.harvard.edu...

If I change my default email address in Canvas, will it affect my login address?

Changing your default email address in Canvas will not affect the address that is used to log into Canvas. This holds true for both Degree Program/Residential Canvas (canvas.harvard.edu), and for Professional Education Canvas (exed.canvas.harvard.edu).

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How can I fix "400 Bad Request" errors on trying to access Canvas?

I can't login! What's going on?

If I change my default email address in Canvas, will it affect my login address?

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