History of DataTransfer.effectAllowed

Replaced {{DataTransferSeeAlso}} macro by general {{page}}

A frustrating IE-only quirk with effectAllowed values, that was not clearly documented elsewhere.

Fixed page formatting to allow the compat data scraper to parse the page

Use DnD specific sidebar

Fix c&p error in example

Use {{DataTransferSeeAlso}}

Update SeeAlso list

Fix typo

Fix typo