There are a few different failures when running canvas_golden_test.dart compiled to dart2wasm. The names of the tests are:

• CkCanvas emoji text with skin tone
• CkCanvas empty frame after contentful frame
• CkCanvas resources used in temporary surfaces for Image.toByteData can cross to rendering overlays

I am temporarily going to skip these tests on the wasm target until we have a solution, so that we can get flutter/engine#40834 landed.