I currently cannot find a way to seek through ads using the videojs player and the ima sdk plugin for it. The api documentation doesent mention anything about seeking and using the seek function provided by videojs just seeks within the underlying content video, not within the actual ad.
It doesent seem to be a problem in other popular solutions like videojs + MailOnline Plugin.
Is this actually not possible with the ima sdk?
Unfortunately, I don't think that the SDK exposes a seek function as it is an uncommon case. Normally, ad vendors would not want their ads to be skipped to the end.