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Frontend Performance Quiz Practice
Active Recall Drill Session
← Exit Session
Question 1 of 1
medium
Frontend Performance
Why does the hero-image-via-CSS-background scenario in the WaterfallVisualizer walkthrough delay LCP without preload?
A
CSS files are always slower to download than images
B
The browser can't discover the image's URL at all until the CSS file referencing it via background-image has been fully downloaded and parsed — the image can't even START downloading until that point
C
The image file itself is corrupted
D
This delay has nothing to do with resource discovery timing
Check Answer