- From: Christian Biesinger <cbiesinger@gmail.com>
- Date: Wed, 16 Feb 2011 10:57:05 -0800
- To: Arvind Jain <arvind@google.com>
- Cc: public-web-perf <public-web-perf@w3.org>
link rel=prefetch doesn't execute any scripts on the prefetched page, at least not in Firefox. Is this different in chrome? This does seem like a useful API for web pages though. -christian On Wed, Feb 16, 2011 at 6:30 AM, Arvind Jain <arvind@google.com> wrote: > Hi webperf folks, > I'd like to check with you if it would make sense to add one more > deliverable to the web performance working group. > There's been a proposal for a Tab Visibility API, which provides a web > developer an API (in Javascript) to find out whether the page is currently > hidden (e.g. not in the foreground tab) vs. visible to the user. > I'm aware of two performance use cases for it: > 1) pages that consume a lot of CPU can avoid doing so when the page is not > visible to the user. > 2) support html5 <link rel=prefetch> standard (when the browser prefetches a > page, it should let the page know it's not visible). > Below is the discussion on it on whatwg: > http://lists.whatwg.org/htdig.cgi/whatwg-whatwg.org/2010-December/029382.html > I think it makes sense for web performance working group to standardize this > API. Please let me know your thoughts. > Thanks, > Arvind
Received on Wednesday, 16 February 2011 18:57:37 UTC