Harness status: OK

Found 4 tests

4 Pass
Pass	e.style['animation-composition'] = "replace" should set the property value
Pass	e.style['animation-composition'] = "add" should set the property value
Pass	e.style['animation-composition'] = "accumulate" should set the property value
Pass	e.style['animation-composition'] = "replace, add, accumulate" should set the property value