[adidas VR Store] Screen Blackout Issue

Hi

adidas Korea VR_Store Link

Web èhttp://shop.adidas.co.kr/vr_store

Mobile èhttp://m.shop.adidas.co.kr/vr_store

I have a promblem like a blackout screen issue with our VR_Store developed using Krpano software.

[Description of the Issue/Error]

In the first few scenes, the movements between scenes are smooth and no problem, but the screens gradually comes to be unstable while moving and become a blackout screen finally.

https://www.dropbox.com/s/eg1zuwdnlgp3…screen.jpg?dl=0

This error occurred only while moving scenes including embedded video contents like the below picture but No problems while moving scenes not including video contents.

https://www.dropbox.com/s/bkigwmm0t7jr…nbeded.jpg?dl=0

I tested on iPhone4 device with iOS: 10.3.3 and Safari 10.0, but any black-out issue was not occurred.

Additionally, website data size of adidas.co.kr was noramlly 40 Mb per VR_Store site link on iPhoneX, but the website data size was not over 1Mb on iPhone4.

(Website data size check: iPhone Settings > Safari > Advanced > Website Data)

Finally, my test result are:

1) There was black-out issue on iPhoneX with iOS: 11.4 and Safari 11.0. Additionally, website data was getting increased during access to the VR_Store and moving around. (about 40Mb each access)

2) There was NO black-out issue on iPhone4 with iOS: 10.3.3 and Safari 10.0. Additionally, website data was kept 1Mb under during access to the VR_Store.

Could you anybody look into this issue and advice me to fix this problem?

Thanks for your help in advance!