fix: handle url imports with semicolon (fix #7717)

packages/vite/src/node/__tests__/plugins/css.spec.ts

@@ -122,6 +122,20 @@ describe('hoist @ rules', () => {
     expect(result).toBe(`@import "bla";.foo{color:red;}`)
   })
 
+  test('hoist @import url with semicolon', async () => {
+    const css = `.foo{color:red;}@import url("bla;bla");`
+    const result = await hoistAtRules(css)
+    expect(result).toBe(`@import url("bla;bla");.foo{color:red;}`)
+  })
+
+  test('hoist @import url data with semicolon', async () => {
+    const css = `.foo{color:red;}@import url(data:image/png;base64,iRxVB0);`
+    const result = await hoistAtRules(css)
+    expect(result).toBe(
+      `@import url(data:image/png;base64,iRxVB0);.foo{color:red;}`
+    )
+  })
+
   test('hoist @import with semicolon in quotes', async () => {
     const css = `.foo{color:red;}@import "bla;bar";`
     const result = await hoistAtRules(css)

packages/vite/src/node/plugins/css.ts

@@ -1112,10 +1112,13 @@ export async function hoistAtRules(css: string) {
   // CSS @import can only appear at top of the file. We need to hoist all @import
   // to top when multiple files are concatenated.
   // match until semicolon that's not in quotes
-  s.replace(/@import\s*(?:"[^"]*"|'[^']*'|[^;]*).*?;/gm, (match) => {
-    s.appendLeft(0, match)
-    return ''
-  })
+  s.replace(
+    /@import\s*(?:url\([^\)]*\)|"[^"]*"|'[^']*'|[^;]*).*?;/gm,
+    (match) => {
+      s.appendLeft(0, match)
+      return ''
+    }
+  )
   // #6333
   // CSS @charset must be the top-first in the file, hoist the first to top
   let foundCharset = false