Intermittent issue while downloading plugins from ckeditor

Hello,

Since Monday this week, we are getting intermittent job failures in Travis. Reason for failure is that it fails to download a plugin from ckeditor. I am not sure what is causing the problem. A job that is failing https://travis-ci.org/openscholar/openscholar/jobs/602422594#L1675

Any help would be appreciated. Thanks.

Imprint