[WebGL2] The output values don't match the expected for FULLY_CONNECTED operation

[Christywl]

Test Env: Chromium Version: nightly build 70.0.3503.0 (0ff81ee) Platform: Mac OS 10.13.6

Expected Result: The test should pass.

Actual Result: The output values don't match the expected for FULLY_CONNECTED operation: For example:

• check result for Fully connected float example: expected: [8, 68, 36] actual: [68, 0, 0]

How to Reproduce:

1. Launch chromium and disable WebML flag

2. Visit https://brucedai.github.io/nt/test/fully_connected.html?backend=webgl2:

   CTS & CTS Supplement Test:

   • check result for Fully connected float example
   • check result for Fully connected float relu example
   • check result for Fully connected float relu1 example
   • check result for Fully connected float relu6 example
   • check result for Fully connected float example/2
   • check result for Fully connected float weights as inputs example
   • check result for Fully connected float 3D input example

[GreyZzzzzzXh]

This bug has been fixed by replacing webgl2 with tfjs-core (PR #297).

[Christywl]

This issue was fixed on webgl backend with the latest commit https://github.com/intel/webml-polyfill/commit/63c1ca253e7fa7d19267b8e8eb71a3b618d3fa65.