The current version of WW (2.15) and the soon-to-come 2.16 do not have this. But there is an issue registered:
and it might happen in 2.17 or later.
One quick aside. It is one thing for IT management to object to integrating WeBWorK with Canvas because of security concerns when the WeBWorK hosting is /external/. But when you have your own WeBWorK server under the control of your institution, do the same concerns still exist? Have the people objecting considered that you have an in-house WeBWorK server you are trying to connect to Canvas?