IMA HTML5 SDK compatibility issue on legacy browsers due to DOMRect

[Mathieu Massicotte]

Hi,

Starting with version 3.701.0, which was released yesterday, the IMA HTML5 SDK is no longer functional on certain older browser versions. Following a thorough investigation, we have identified that the issue arises from the use of the DOMRect API, which is not supported on these legacy browsers.

This issue notably affects our 2018 and 2019 TV users, as these devices rely on a Chromium version older than 61.
https://caniuse.com/?search=DOMRect

Could you please take a closer look at this issue? It is significantly impacting our monetization efforts.

Best regards,

Mathieu Massicotte

[IMA SDK]

Hi,

Thank you for contacting the IMA SDK support team.

I will check with our team regarding your issue and one of my team members will reach out to you once we have an update on this. Meanwhile, your patience is highly appreciated.

Thanks,
 

IMA SDK Team

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[2025-06-13 15:19:17Z GMT] This message is in relation to case "ref:!00D1U01174p.!500Ht01rfCRE:ref" (ADR-00314200)

[Nejc Sever]

Hi,

We are experiencing the same issue.

As Mathieu wrote, with version 3.701.0 released on June 11th, IMA HTML5 SDK stopped working on very old browser versions. We narrowed it down to the same unavailable DOMRect API.

This issue has significant impact on us, because old browsers represent majority of our traffic.

Attached is an image of the error happening in IMA HTML5 Video Suite Inspector in older browser.

I would also like to reference a similar old browser incompatibility issue from the past (https://groups.google.com/g/ima-sdk/c/t6grwkTMj5w) as I would assume that it affects the same group of developer as this one. This past issue was resolved by IMA SDK team reverting the changes.

Best,
Nejc

[IMA SDK]

Hi,

The issue has been resolved. Kindly check and confirm the results. 

Thanks,
 

IMA SDK Team

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[2025-08-13 19:03:24Z GMT] This message is in relation to case "ref:!00D1U01174p.!500Ht01rfCRE:ref" (ADR-00314200)

[Mathieu Massicotte]

Thank you for the update! I currently don't have access to the problematic device, but I'll be able to test it next week. :)

[Mathieu Massicotte]

It's working now, thanks! :)