Emilio Cobos Álvarez 921890154c Bug 1619858 - Use an intersection observer per document for lazyload. r=hiro
We can't observe when the sub-document gets detached from the root document to
drop the observation, so this is the sound thing to do.

Differential Revision: https://phabricator.services.mozilla.com/D65362

--HG--
extra : moz-landing-system : lando
2020-03-04 21:11:43 +00:00
..

Common testing tools for mozilla codebase projects, test suite definitions
for automated test runs, tests that don't fit anywhere else, and other fun
stuff