[wp-trac] [WordPress Trac] #63018: Increase styles_inline_size_limit from 20, 000 bytes
WordPress Trac
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Sun Nov 2 04:32:49 UTC 2025
#63018: Increase styles_inline_size_limit from 20,000 bytes
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Reporter: westonruter | Owner: westonruter
Type: enhancement | Status: closed
Priority: normal | Milestone: 6.9
Component: Script Loader | Version: 5.8
Severity: normal | Resolution: fixed
Keywords: | Focuses: css, performance
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Comment (by westonruter):
Follow up: #64178 (additional inline CSS is pushing the oEmbed discovery
links past the 150K peek limit)
Based on re-evaluating the data from my benchmarks above, I
[https://core.trac.wordpress.org/ticket/64178#comment:6 suggest] we reduce
the `styles_inline_size_limit` to 35K or 40K, instead of bumping the 20K
limit all the way to 50K.
Note the graphs above showing the LCP-TTFB for Fast 4G
([https://github.com/GoogleChromeLabs/wpp-
research/pull/201#issuecomment-3447997500 raw data]) and broadband
([https://github.com/GoogleChromeLabs/wpp-
research/pull/201#issuecomment-3448044083 raw data]) from #63018. In the
two graphs, the uncached curve starts to flatten out at 40K. The
difference between 40K and 50K is not as great as the difference between
30K and 40K.
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Ticket URL: <https://core.trac.wordpress.org/ticket/63018#comment:17>
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