Fix: make File(Like?)[Symbol.toStringTag] a getter (#1112)

nodejs · Nov 27, 2021 · 201343c · 201343c
1 parent 039354b
commit 201343c
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Showing 2 changed files with 12 additions and 10 deletions.
diff --git a/lib/fetch/file.js b/lib/fetch/file.js
@@ -66,11 +66,7 @@ class File extends Blob {
     return this[kState].lastModified
   }
 
-  [Symbol.toStringTag] () {
-    if (!(this instanceof File)) {
-      throw new TypeError('Illegal invocation')
-    }
-
+  get [Symbol.toStringTag] () {
     return 'File'
   }
 }
@@ -162,11 +158,7 @@ class FileLike {
     return this[kState].lastModified
   }
 
-  [Symbol.toStringTag] () {
-    if (!(this instanceof FileLike)) {
-      throw new TypeError('Illegal invocation')
-    }
-
+  get [Symbol.toStringTag] () {
     return 'File'
   }
 }

diff --git a/test/fetch/file.js b/test/fetch/file.js
@@ -0,0 +1,10 @@
+'use strict'
+
+const { test } = require('tap')
+const { File, FileLike } = require('../../lib/fetch/file')
+
+test('Symbol.toStringTag', (t) => {
+  t.plan(2)
+  t.equal(File.prototype[Symbol.toStringTag], 'File')
+  t.equal(FileLike.prototype[Symbol.toStringTag], 'File')
+})