Issue with h5p-resizer.js in FireFox when upgrading from Moodle plugin Ver. 1.20.2 to Ver. 1.21.

We have a local moodle server setup to host our H5P content. We embed our H5P content in our Brightspace LMS and use the h5p-resizer.js to handle responsiveness.  It was operating perfectly until we recently updated from Moodle plugin version 1.20.2 to 1.21.0.  The update seems to have broken the h5p-resizer script.  It only happens in Firefox, though. Which is odd.

We have a deveopment server that we reverted back to the older version of the plugin (1.20.2) for testing and the resizing script started working again. If we re-upgrade back to 1.21.0, it breaks.

See attached image to see a visual of what's happening.

Both chrome and firefox are updated to the latest version.

Our current moodle version is 3.9.1+ (Build: 20200717).

Any help would be greatly appreciated.


Hey Folks,

I am also having this issue.  Like Shane, we have a Moodle server setup to host H5P content.  Content is mostly embedded in Brightspace.  

I upgraded from 1.20.1 to 1.21.0. After the upgrade, the resizer file was not resizing the object in Brightspace.

Any advice would be appreciated.