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Black bars around Google IMA pre-roll ads

We are in the process of transitioning from a videojs/flash player to JW Player. Part of that requires Google IMA pre-roll ads work in JW Player. Thus far, we're seeing an alignment issue where the pre-roll ads appear to be smaller than the player itself - causing a black bar to appear above, to the sides and sometimes below the ad playing.

You should be able to see this on pre-roll ads at

It doesn't appear that use of the "stretching" option has any impact on the pre-roll ads. This is also with using JW6.

3 Community Answers

Cooper Reid

JW Player Support Agent  
0 rated :

Have you tried this ad with JW7 yet? I’d like to see if the stretching issue has been resolved, but I can’t seem to run the ad under any of my hosts (local, and on our internal stream tester) in both JW6 & JW7. You can update to JW7 if you login to your account and visit the account page:


0 rated :

Yes, it looks like JW7 fixes the ad alignment issue.

Cooper Reid

JW Player Support Agent  
0 rated :

Excellent, glad to hear it!

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