"CONTEXT_LOST_WEBGL: loseContext: context lost" on iPad Air 2

[kk12837]

mapbox-gl-js version: 1.11.1

browser: safari (ipad air 2 , ios 14 beta 3) - not working
safari (ipad prod, ios 14 beta 3) - working

Steps to Trigger Behavior

1. just go to https://dev.hkep.com/chistdev/demo?dynasty=tong&access_token=WGx2ekhSNkdWa3c2MkREVW04djIzb2M1MG01Z0lCb1YveFEvb2VXb2w0bjBpQXdsNk1HbFdBdjVOVkpzWWE1bA%3D%3D

Link to Demonstration

https://dev.hkep.com/chistdev/demo?dynasty=tong&access_token=WGx2ekhSNkdWa3c2MkREVW04djIzb2M1MG01Z0lCb1YveFEvb2VXb2w0bjBpQXdsNk1HbFdBdjVOVkpzWWE1bA%3D%3D

Expected Behavior

show normal map

Actual Behavior

blank page with js error - CONTEXT_LOST_WEBGL: loseContext: context lost

[ryanhamley]

I can't open your link but in either case, this is a duplicate of #9691 even though the environment is different. Let's keep the discussion focused in the original ticket.

[kk12837]

how about this one, https://dev.hkep.com/mpms3/api/link/cm1demo?access_token=WGx2ekhSNkdWa3c2MkREVW04djIzb2M1MG01Z0lCb1YveFEvb2VXb2w0bjBpQXdsNk1HbFdBdjVOVkpzWWE1bA==