417025 - CSS background images should be loaded with normal priority

Status: NEW

(Core :: Layout: Images, Video, and HTML Frames, defect)

Description

[Robert Sayre]

I'm told CSS background images now block onload, so they should load with normal network priority instead of background priority. This might be a dupe.

Comment 1

[Boris Zbarsky [:bzbarsky]]

They don't load with background priority.  They load with default priority (because the load is no longer LOAD_BACKGROUND).

Images for <img> in many cases load with _higher_ than default priority; see the code in nsImageFrame::Init.

Perhaps we should be doing the same automatically for CSS background images, since the very fact that we're loading them means someone is using them...