diff --git a/packages/vite/src/node/optimizer/scan.ts b/packages/vite/src/node/optimizer/scan.ts
index bcf6fd92c7e662..1cdef6c339c103 100644
--- a/packages/vite/src/node/optimizer/scan.ts
+++ b/packages/vite/src/node/optimizer/scan.ts
@@ -409,12 +409,10 @@ function esbuildScanPlugin(
         // Avoid matching the content of the comment
         raw = raw.replace(commentRE, '<!---->')
         const isHtml = p.endsWith('.html')
-        scriptRE.lastIndex = 0
         let js = ''
         let scriptId = 0
-        let match: RegExpExecArray | null
-        while ((match = scriptRE.exec(raw))) {
-          const [, openTag, content] = match
+        const matches = raw.matchAll(scriptRE)
+        for (const [, openTag, content] of matches) {
           const typeMatch = openTag.match(typeRE)
           const type =
             typeMatch && (typeMatch[1] || typeMatch[2] || typeMatch[3])