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EXRLoader is not working on Samsung Galaxy S8

See original GitHub issue

Description of the problem

I noticed that the EXRLoader is not working on (at least) Samsung Galaxy S8. This example https://threejs.org/examples/webgl_materials_envmaps_exr.html renders as completely black, as can be seen on this screenshot: EXR_not_supported

The console shows the following errors

THREE.WebGLRenderer 98
three.js:15111 THREE.WebGLRenderer: OES_texture_float extension not supported.
three.js:15111 THREE.WebGLRenderer: OES_texture_half_float extension not supported.
three.js:15111 THREE.WebGLRenderer: OES_texture_half_float_linear extension not supported.
three.js:15111 THREE.WebGLRenderer: OES_texture_float_linear extension not supported.
three.js:15111 THREE.WebGLRenderer: EXT_texture_filter_anisotropic extension not supported.
three.js:15111 THREE.WebGLRenderer: EXT_shader_texture_lod extension not supported.
44WebGL: INVALID_ENUM: texImage2D: invalid type
43[.WebGL-0xcc23c400]GL ERROR :GL_INVALID_FRAMEBUFFER_OPERATION : glClear: framebuffer incomplete
169[.WebGL-0xcc23c400]GL ERROR :GL_INVALID_FRAMEBUFFER_OPERATION : glDrawElements: framebuffer incomplete
webgl_materials_envmaps_exr.html:1 WebGL: too many errors, no more errors will be reported to the console for this context.

I have read on some other issue that this might be limited to Samsung phones due to the lack of some of those extensions. Is there any way around this?

This other HDR example is working fine: https://threejs.org/examples/?q=hdr#webgl_materials_envmaps_hdr

Although it shows the same warnings:

THREE.WebGLRenderer 98
three.js:15111 THREE.WebGLRenderer: OES_texture_float extension not supported.
three.js:15111 THREE.WebGLRenderer: OES_texture_half_float extension not supported.
three.js:15111 THREE.WebGLRenderer: OES_texture_half_float_linear extension not supported.
three.js:15111 THREE.WebGLRenderer: OES_texture_float_linear extension not supported.
three.js:15111 THREE.WebGLRenderer: EXT_texture_filter_anisotropic extension not supported.
three.js:15111 THREE.WebGLRenderer: EXT_shader_texture_lod extension not supported.