> On Oct 28, 2019, at 11:39 AM, Rob Buis <rb...@igalia.com> wrote: > > Hi, > > I made a lazy image loading prototype earlier this year > (https://bugs.webkit.org/show_bug.cgi?id=196698) and have been splitting it > up into reviewable patches. The main implementation part landed recently so I > am wondering about the next steps. > > One thing left to do for sure is cleaning up/adding tests. For one there are > tests in http/tests/lazyload which can just be WPT tests, so I'll work in > this area for sure. As usual, while adding new tests bugs may show up and > more patches will be needed. > > Another possible task is implementing metadata fetch, but it makes the code > more complex and chromium has backtracked from it. > > Changing the behavior of loading=auto to make lazy loading the default seems > risky and should possibly only be done when lazy image loading is deemed > stable enough.
Agreed. Is there any compat data from other browsers? > > Yet another possible task is making lazy loading work for CSS backgrounds, > this is implemented in the prototype but I don't think there are many tests > for it. > > A related task is implementing lazy loading for iframe's, I took a quick look > and this looks like similar work to lazy image loading, but should be much > easier to implement now the building blocks are there. I think this one has the highest potential to give big page loading gains, especially if we can get this one turned on by default (or maybe for cross-origin frames), so I suggest working on this. Do we have any data from other browsers to know whether enabling lazy-loading iframe by default breaks the web? > > Finally there is the task of setting threshold viewport distance values for > triggering deferred loads. I only have access to iOS simulator, so I wonder > if that is something Apple could help with? I would be happy to help. > > I do not have a strong preference among these tasks. Thoughts? > Cheers, > > Rob. > > P.S: I intend to attend the WebKit Contributors meeting, so feel free to chat > with me there about lazy loading. See you there! Simon _______________________________________________ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev
