Problem accessing Manifold from Conifer to archive Manifold projects

[mkgold]

The CUNY Graduate Center Library uses Conifer to archive digital dissertation and capstone projects. Until recently, our librarians were able to use Conifer without a problem to archive Manifold projects, but a recent attempt returned an error, and I'm wondering whether it is due to our recent codebase changes to deal with spam issues.

Expected Behavior

1. Login to Conifer:https://conifer.rhizome.org/
2. Add a URL to capture
3. Select or create a new collection
4. Select a browser
5. Click Start Capture

Current Behavior

Page returns an error

[mkgold]

update: the user got this to work on Safari, but continues to have trouble using Chrome and Firefox. Robin has reproduced the error.