Bug Fixes
- aria-allowed-role: Add math to allowed roles for img element (#4658) (f6dddd9), closes #4657
- captions: fix grammar in captions check incomplete message (#4661) (3ef7058)
- consistently parse tabindex, following HTML 5 spec (#4637) (3b0a361), closes #4632
- core: measure perf for async checks (#4609) (e7dc26e)
- locale: fixed typos in german (DE) locale (#4631) (0740980)
- locale: proofread and updated de.json (#4643) (910cdb2)
- no-autoplay-audio: don't timeout for preload=none media elements (#4684) (b7f1ad1)
- target-size: do not treat focusable tabpanels as targets (#4702) (67d4e4f), closes #4421 #4701