fix(css): avoid warnings for image-set containing __VITE_ASSET__ (vitejs#20520)

Copilot · sapphi-red · web-flow · commit f1a2635e6977 · 2025-08-06T11:01:58.000+09:00
Co-authored-by: copilot-swe-agent[bot] &lt;198982749+Copilot@users.noreply.github.com&gt;
Co-authored-by: sapphi-red &lt;49056869+sapphi-red@users.noreply.github.com&gt;
diff --git a/packages/vite/src/node/plugins/css.ts b/packages/vite/src/node/plugins/css.ts
@@ -2021,7 +2021,10 @@ function skipUrlReplacer(unquotedUrl: string) {
     isExternalUrl(unquotedUrl) ||
     isDataUrl(unquotedUrl) ||
     unquotedUrl[0] === '#' ||
-    functionCallRE.test(unquotedUrl)
+    functionCallRE.test(unquotedUrl) ||
+    // skip if it is already a placeholder
+    unquotedUrl.startsWith('__VITE_ASSET__') ||
+    unquotedUrl.startsWith('__VITE_PUBLIC_ASSET__')
   )
 }
 async function doUrlReplace(

Original file line number	Diff line number	Diff line change
`@@ -2021,7 +2021,10 @@ function skipUrlReplacer(unquotedUrl: string) {`
`2021`	`2021`	`isExternalUrl(unquotedUrl) \|\|`
`2022`	`2022`	`isDataUrl(unquotedUrl) \|\|`
`2023`	`2023`	`unquotedUrl[0] === '#' \|\|`
`2024`		`- functionCallRE.test(unquotedUrl)`
	`2024`	`+ functionCallRE.test(unquotedUrl) \|\|`
	`2025`	`+ // skip if it is already a placeholder`
	`2026`	`+ unquotedUrl.startsWith('__VITE_ASSET__') \|\|`
	`2027`	`+ unquotedUrl.startsWith('__VITE_PUBLIC_ASSET__')`
`2025`	`2028`	`)`
`2026`	`2029`	`}`
`2027`	`2030`	`async function doUrlReplace(`