wg-analytics Status update 2020-08-17

[zhouyx]

What was accomplished

• Web Worker in iframe: Non origin iframe: around 80ms delay in initialization, but can still access IndexDb db. 3P iframe: around 300ms delay in initialization.
• Support visibility tracking of non AMP element
• Consent UI Lightbox mode PR merged

What's next

• Consent: Remove consent string size restriction on publisher's origin when Storage API is not used.
• Store CID to localStorage on origin as backup
• Analytics: Visibility tracking to check element's size before using the intersectionRatio value from IntersectionObserver.