1) Add "%26type%3D.mp4" (that is, encoded &type=.mp4) to the j2sargs field so that Tracker identifies this as a video. (Technically, all we need is the "&.mp4" there, because all we are doing is providing the file extension that Tracker needs in order to recognize this as a video file.)
2) Adjust Tracker to check for video first, then trz
solution is two-fold:
1) Add "%26type%3D.mp4" (that is, encoded &type=.mp4) to the j2sargs field so that Tracker identifies this as a video. (Technically, all we need is the "&.mp4" there, because all we are doing is providing the file extension that Tracker needs in order to recognize this as a video file.)
2) Adjust Tracker to check for video first, then trz
https://physlets.org/tracker/trackerJS/?j2sargs=https%3A%2F%2Fwww.compadre.org%2Fosp%2Fdocument%2FServeFile.cfm%3FID%3D10579%26DocID%3D5673%26TrackerSet%3D1%26test%3D.mp4