HN commenting broken with Chrome 56

Attempts to comment on HN just hang. The console shows "Form submission canceled because the form is not connected" from jquery. This stackoverflow answer says that Chrome 56 is now enforcing a part of the html spec that requires forms to be added to the document:

http://stackoverflow.com/questions/42053775/getting-error-form-submission-canceled-because-the-form-is-not-connected

Please fix :-)