Google IMA NOT WORKS IN internet explorer 11 (IE11)

[Alessandro Grosselle]

Hello to all,

I am checking in all browser my project based on your library.

On ie11 never started advertising; you can check yourself, trying your demo:

https://developers.google.com/interactive-media-ads/docs/sdks/html5/vastinspector?player=h5

Apparently I do not receive any error

[Vu Chau (IMA SDK Team)]

Hi Alessandro,

With which ad tag did you see the issue?  There has been a recent issue regarding the rendering of MP4 creatives in IE 11.

Vu Chau

IMA SDK Team

[Alessandro Grosselle]

Hi Vu,

thank fo your answer.

I am using this sample:

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%3Dskippablelinear&correlator=

and this demo page:

https://developers.google.com/interactive-media-ads/docs/sdks/html5/vastinspector?player=h5

[Vu Chau (IMA SDK Team)]

Hi Alessandro,

Thanks for the tag! It confirmed my theory, which is that there are some kinds of transcoding differences between the MP4 media file, and IE 11.

Refer to the attached screenshot for the error that was thrown when IE attempted to render the MP4 media file in the tag.

The SDK supports IE 11 (note that the companion ads are displayed just fine, just that the media file fails to render, for the aforementioned reason).

Vu Chau

IMA SDK Team

[Alessandro Grosselle]

Oh thank you I haven't seen the error string into logger.

A stupid question,

the tag that I have linked has some webM, why we can't reproduce them?

I try to reproduce forcing to webM mime types (from advanced controls) and appears this error:

"Linear assets were found in the VAST ad response, but none of them matched the video player's capabilities"

IE 11 can't reproduce WebM?

Another question, 

The library implements a cascading fallback (ie try to play mp4 can not, ok test WebM ...) or do I implement it?

Thank,

Alessandro

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[Vu Chau (IMA SDK Team)]

Hi Alessandro,

IE doesn't support WebM (see http://caniuse.com/#search=webm).  

Currently the SDK doesn't support that specific fallback logic (from one mediafile format to another) you mentioned.

From that ad tag, the only thing that IE can play is the MP4s.  And since MP4 is the only format supported by IE in that ad response, it doesn't fallback to anything else.  I saw IE requesting all three MP4s specified in the VAST XML (you can see that in the browser's console), so the SDK does fallback to another mediafile of the same format, though.

I'm not sure if it's possible to override or extend the SDK's fallback logic.  Given that you know which mediafile formats are/aren't compatible in what browsers, what's possible is to prioritize the mimeTypes that you want the SDK to pick when you detect that your users are on a particular browser.

You might choose to host your creatives externally (expand Linear (Video)).

Vu Chau

IMA SDK Team

[Alessandro Grosselle]

Thank you for your answer.

But why into IE using this demo page:

http://googleads.github.io/googleads-ima-html5/advanced/

and 

protocol less tag or with http protocol tag: 

//traffick.jivox.com/jivox/serverAPIs/getCampaignById.php?api=vast&version=2.0&siteId=94d5ae29c87442&campaignId=21411&r=asdasdas

doesn't work? Have you any idea?

[Vu Chau (IMA SDK Team)]

Hi Alessandro,

I'm not sure I understood your questions.  Would you elaborate on what you were seeing?

FYI, that tag has only one mediafile, which happens to be an MP4.  As of now, there are issues playing MP4 in IE (due to their transcoding discrepancies).  

Thanks!

Vu Chau

IMA SDK Team

[Alessandro Grosselle]

Vu excuse I may have been inaccurate .
I wondered why, if I passed the url tag with the http protocol, internet explorer launches an error.

For example,  using this tag
http://traffick.jivox.com/jivox/serverAPIs/getCampaignById.php?api=vast&version=2.0&siteId=94d5ae29c87442&campaignId=21411&r=asdasd
And try to reproduce it using this demo:
http://googleads.github.io/googleads-ima-html5/advanced/

[Vu Chau (IMA SDK Team)]

Hi Alessandro,

Thanks for clarifying.  But, the tag works fine for me in IE 11 (Win 10).  I didn't see any error at all.

My only suspicion based on your issue description is that you might have encountered a protocol mismatch scenario (which can happen on any browser, by the way).  If you are loading our test page on HTTPS (https://googleads.github.io/googleads-ima-html5/advanced/), then make sure your tag is also served via HTTPS as well (https://traffick.jivox.com/jivox/serverAPIs/getCampaignById.php?api=vast&version=2.0&siteId=94d5ae29c87442&campaignId=21411&r=asdasd).  Else, there would be a protocol mismatch, causing certain resources to be blocked from serving by the browser (which was what I saw when I was playing with the protocols).

Vu Chau

IMA SDK Team

[Alessandro Grosselle]

Sorry Vu,

But it continues to give me the Aderror (IE11 win10) using

http://googleads.github.io/googleads-ima-html5/advanced/?ac=true as demo

and as tag

http://traffick.jivox.com/jivox/serverAPIs/getCampaignById.php?api=vast&version=2.0&siteId=94d5ae29c87442&campaignId=21411&r=asdasd

All works fine if you use httpS tag instead of http into http demo page

[Vu Chau (IMA SDK Team)]

Hi Alessandro,

Still no error on my side using your tag (see screenshot).  Check out this StackOverflow discussion - let us know if that helps! 

Vu Chau

IMA SDK Team

[Steve Craig]

Hi Vu,

Can you elaborate how you diagnosed the "AdError 400..." issue as an MP4 transcoding issue?

I just want to make sure that if I see that in the wild (a real VAST tag) I could correctly diagnose it.

I noticed all the IMA sample vast tags (https://developers.google.com/interactive-media-ads/docs/sdks/html5/tags) suffer from this issue in Internet Explorer too. If it's a bit of an obscure error, then perhaps it's worthwhile to just fix the sample tags.

Thanks,

Steve

[Vu Chau (IMA SDK Team)]

Hi Steve,

Can you elaborate how you diagnosed the "AdError 400..." issue as an MP4 transcoding issue?

We basically had some MP4s with different transcoding schemes to test with, and we swapped them in and out to see which would and wouldn't play.  Right now I don't know exactly which transcoding configuration causes this error, but as a safety precaution, you can detect if the user is on IE, and if so, serve a non-MP4 mediafile.

I noticed all the IMA sample vast tags (https://developers.google.com/interactive-media-ads/docs/sdks/html5/tags) suffer from this issue in Internet Explorer too. If it's a bit of an obscure error, then perhaps it's worthwhile to just fix the sample tags.

I think those other tags error out because they have MP4s targeted to them as well.  Right now we are keeping the MP4s so they play on compatible browsers, but we'll consider optimizing that.

Vu Chau

IMA SDK Team

[Steve Craig]

Nice one - thanks!

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