fix: splitFileAndPostfix works as cleanUrl (#12572)

Co-authored-by: Bjorn Lu <bjornlu.dev@gmail.com>

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

@@ -467,18 +467,8 @@ function ensureVersionQuery(
 }
 
 function splitFileAndPostfix(path: string) {
-  let file = path
-  let postfix = ''
-
-  let postfixIndex = path.indexOf('?')
-  if (postfixIndex < 0) {
-    postfixIndex = path.indexOf('#')
-  }
-  if (postfixIndex > 0) {
-    file = path.slice(0, postfixIndex)
-    postfix = path.slice(postfixIndex)
-  }
-  return { file, postfix }
+  const file = cleanUrl(path)
+  return { file, postfix: path.slice(file.length) }
 }
 
 function tryFsResolve(
@@ -488,32 +478,27 @@ function tryFsResolve(
   targetWeb = true,
   skipPackageJson = false,
 ): string | undefined {
-  let postfixIndex = fsPath.indexOf('?')
-  if (postfixIndex < 0) {
-    postfixIndex = fsPath.indexOf('#')
-
-    // Dependencies like es5-ext use `#` in their paths. We don't support `#` in user
-    // source code so we only need to perform the check for dependencies.
-    // We don't support `?` in node_modules paths, so we only need to check in this branch.
-    if (postfixIndex >= 0 && isInNodeModules(fsPath)) {
+  // Dependencies like es5-ext use `#` in their paths. We don't support `#` in user
+  // source code so we only need to perform the check for dependencies.
+  // We don't support `?` in node_modules paths, so we only need to check in this branch.
+  const hashIndex = fsPath.indexOf('#')
+  if (hashIndex >= 0 && isInNodeModules(fsPath)) {
+    const queryIndex = fsPath.indexOf('?')
+    // We only need to check foo#bar?baz and foo#bar, ignore foo?bar#baz
+    if (queryIndex < 0 || queryIndex > hashIndex) {
+      const file = queryIndex > hashIndex ? fsPath.slice(0, queryIndex) : fsPath
       const res = tryCleanFsResolve(
-        fsPath,
+        file,
         options,
         tryIndex,
         targetWeb,
         skipPackageJson,
       )
-      if (res) return res
+      if (res) return res + fsPath.slice(file.length)
     }
   }
 
-  let file = fsPath
-  let postfix = ''
-  if (postfixIndex >= 0) {
-    file = fsPath.slice(0, postfixIndex)
-    postfix = fsPath.slice(postfixIndex)
-  }
-
+  const { file, postfix } = splitFileAndPostfix(fsPath)
   const res = tryCleanFsResolve(
     file,
     options,