HTML5 IMA SDK not working on mobile web; adLoadError: The VAST response document is empty.

[anja...@tyroo.com]

Hi all,

I am integrating the Google's IMA SDK for HTML5.

I am currently using Google's sample linear Ad tag URL mentioned below:

"https://pubads.g.doubleclick.net/gampad/ads?sz=640x480&iu=/124319096/external/single_ad_samples&ciu_szs=300x250&impl=s&gdfp_req=1&env=vp&output=vast&unviewed_position_start=1&cust_params=deployment%3Ddevsite%26sample_ct%3Dlinear&correlator="

Followed all the steps mentioned for HTML5 IMA and Mobile Video Ads instructions mentioned in HTML5 IMA guide.

This integration works fine on desktop web but fails on mobile chrome and gives an adLoadError - "The VAST response document is empty."

Would be great, if you guys can help me on this to get started on the integration.

Thanks,
Anjali Garg
Email: anja...@tyroo.com

[ima-sdk-adv...@google.com]

Hi,

Thank you for reaching out to support. I'm curious, do you get the empty VAST error every time? An empty VAST response is rarely an SDK issue. I'd guess you're running into frequency capping, which is a DFP feature that can limit the number of times a user can be served the same line item in a given period of time. You can demonstrate this by opening that ad tag in a browser window. If you refresh the page a few times, the tag will start serving an empty response.

However, this can only be the explanation if you're seeing the ad the first time the tag is requested. If you're never see the ad at all then it may be worth investigating further. In that case, you can share the code for your ad request and I'll take a look. If you have a test page, please share that as well.

Regards,

Chris Feldman

IMA SDK Team

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[ffeast]

Hi Chris

I wonder why is an empty VAST XML considered an error at all? 

It's simply a NOAD, and it's fine from VAST3 spec's perspective. 

пятница, 2 февраля 2018 г., 19:50:01 UTC+3 пользователь ima-sdk-adv...@google.com написал:

[Anjali Garg]

Hi all,

Empty VAST XML is an error to the player as the player don't get anything to play while there are gestures bound to play the video.

When I bound the user gestures as required on the player, same code returned me proper VAST and rendered videos.


Thanks for your support!

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