WebGL1/2 unavailable at NXP i.MX8M nano.

[bakusui]

I checked Web page https://webglreport.com/
i.MX8M nano is NG. But Raspberry Pi 4B is OK.
Is there a way to enable it on i.MX8M nano?
[i.MX8M nano] BSP 5.15.71_2.2.0 / imx8mn-lpddr4-evk
cog version:0.14.1 (WPE WebKit 2.40.5) -> webgl1/2 disabled or unavailable.
cog version:0.14.1 (WPE WebKit 2.40.1) -> webgl1/2 disabled or unavailable.
cog version:0.14.1 (WPE WebKit 2.38.6) -> webgl1 support. But webgl2 disabled or unavailable.
cog version:0.14.1 (WPE WebKit 2.38.2) -> webgl1 support. But webgl2 disabled or unavailable.

[Raspberry Pi 4B] meta-webkit(latest/kirkstone) / other(kirkstone)
cog version:0.14.1 (WPE WebKit 2.40.5) -> webgl1/2 both supports.
cog version:0.14.1 (WPE WebKit 2.38.2) -> webgl1 support. But webgl2 disabled or unavailable.