fix(utils): clone RegExp values with new RegExp instead of structuredClone (fix #19245, fix #18875) (#19247)

askoufis · web-flow · commit 56ad2bef0353 · 2025-01-24T11:53:07.000+09:00
diff --git a/packages/vite/src/node/utils.ts b/packages/vite/src/node/utils.ts
@@ -1122,7 +1122,7 @@ function deepClone<T>(value: T): DeepWritable<T> {
     return value as DeepWritable<T>
   }
   if (value instanceof RegExp) {
-    return structuredClone(value) as DeepWritable<T>
+    return new RegExp(value) as DeepWritable<T>
   }
   if (typeof value === 'object' && value != null) {
     throw new Error('Cannot deep clone non-plain object')

Original file line number	Diff line number	Diff line change
`@@ -1122,7 +1122,7 @@ function deepClone<T>(value: T): DeepWritable<T> {`
`1122`	`1122`	`return value as DeepWritable<T>`
`1123`	`1123`	`}`
`1124`	`1124`	`if (value instanceof RegExp) {`
`1125`		`- return structuredClone(value) as DeepWritable<T>`
	`1125`	`+ return new RegExp(value) as DeepWritable<T>`
`1126`	`1126`	`}`
`1127`	`1127`	`if (typeof value === 'object' && value != null) {`
`1128`	`1128`	`throw new Error('Cannot deep clone non-plain object')`