Upload progress incorrect in Google Chrome #2312

Job	Run time
Lint addon	29s
Tests	51s
Tests - Floating Dependencies	1m 18s
Typecheck [email protected]	1m 15s
Typecheck [email protected]	43s
Typecheck [email protected]	47s
Tests - ember-3.25	59s
Tests - ember-lts-3.28	1m 50s
Tests - ember-release	1m 26s
Tests - ember-beta	1m 33s
Tests - ember-canary	1m 25s
Tests - embroider-safe	1m 0s
Tests - embroider-optimized	57s
	14m 33s

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