fix: fallback to browser field without postfix

packages/playground/resolve/browser-field/package.json

@@ -12,6 +12,7 @@
     "./no-ext-index": "./out/esm.browser.js",
     "./not-browser.js": false,
     "./multiple.dot.path.js": false,
-    "jsdom": false
+    "jsdom": false,
+    "./question.js?query": "./out/esm.browser.js"
   }
 }

packages/playground/resolve/index.html

@@ -158,10 +158,12 @@ <h2>resolve package that contains # in path</h2>
   import e from 'resolve-browser-field/ext-index/index.js'
   import f from 'resolve-browser-field/ext-index'
   import g from 'resolve-browser-field/no-ext-index/index.js' // no substitution
+  import h from 'resolve-browser-field/question.js?query'
+  import i from 'resolve-browser-field/no-ext?query'
 
   import { ra, rb, rc, rd, re, rf, rg } from 'resolve-browser-field/relative'
 
-  const success = [main, a, c, d, e, f, ra, rc, rd, re, rf]
+  const success = [main, a, c, d, e, f, h, i, ra, rc, rd, re, rf]
   const noSuccess = [b, g, rb, rg]
 
   if (

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

@@ -917,12 +917,37 @@ function mapWithBrowserField(
 ): string | false | undefined {
   const normalizedPath = path.posix.normalize(relativePathInPkgDir)
 
+  const result = _mapWithBrowserField(normalizedPath, map)
+  if (result !== undefined) {
+    return result
+  }
+
+  // try without postfix for `import 'something/path.js?query'` (see #7098)
+  const { file: normalizedPathWithoutPostfix, postfix } =
+    splitFileAndPostfix(normalizedPath)
+  if (!postfix) {
+    return undefined
+  }
+  const resultWithoutPostfix = _mapWithBrowserField(
+    normalizedPathWithoutPostfix,
+    map
+  )
+  if (typeof resultWithoutPostfix === 'string') {
+    return resultWithoutPostfix + postfix
+  }
+  return resultWithoutPostfix
+}
+
+function _mapWithBrowserField(
+  normalizedRelativePath: string,
+  map: Record<string, string | false>
+): string | false | undefined {
   for (const key in map) {
     const normalizedKey = path.posix.normalize(key)
     if (
-      normalizedPath === normalizedKey ||
-      equalWithoutSuffix(normalizedPath, normalizedKey, '.js') ||
-      equalWithoutSuffix(normalizedPath, normalizedKey, '/index.js')
+      normalizedRelativePath === normalizedKey ||
+      equalWithoutSuffix(normalizedRelativePath, normalizedKey, '.js') ||
+      equalWithoutSuffix(normalizedRelativePath, normalizedKey, '/index.js')
     ) {
       return map[key]
     }