1448785 - Videos on /firefox/ should only load on click

Status: RESOLVED FIXED

(www.mozilla.org :: Pages & Content, enhancement)

Description

[Alex Gibson [:agibson]]

There are currently 4 <video> elements on /firefox/, one of which uses preload="metadata" and the reamining preload="none". Whilst this provides browsers with hints for what to do with the videos on page load, these are only hints and may not be repsected by all user agents.

Web Page Test results on 3G indicate the total page weight on load comes in around 2.5mb, and 56% of Bytes In consists of video resources [1].

We could improve page load time considerably (and save people their data allowance) by only loading the videos once thumbnails are clicked. I don't think any of the video content is critical enough to justify loading it ahead of time.

[1] https://www.webpagetest.org/results.php?test=180326_B9_68f4cd0901fb20bdd8d904b729aa56f6

Comment 1

[GitHub Bugzilla PR Linker]

Attachment: Link to GitHub pull-request: https://github.com/mozilla/bedrock/pull/5527

Comment 2

[[github robot]]

Commit pushed to master at https://github.com/mozilla/bedrock

https://github.com/mozilla/bedrock/commit/6bc6aa7c1284ac41421339c8e1daea5098f531cd
[fix bug 1448785] Videos on /firefox/ should only load on click (#5527)