Merge pull request #1359 from le0nik/fix-tostring-ie

Fix "TypeError: Invalid calling object" error in IE11 (Fixes #1358)
mobxjs · Feb 28, 2018 · 2ae6107 · 2ae6107
2 parents 8f7f4a3 + f8ab36c
commit 2ae6107
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/utils/eq.ts b/src/utils/eq.ts
@@ -23,6 +23,8 @@ function eq(a, b, aStack?, bStack?) {
     return deepEq(a, b, aStack, bStack)
 }
 
+var toString = Object.prototype.toString
+
 // Internal recursive comparison function for `isEqual`.
 function deepEq(a, b, aStack?, bStack?) {
     // Unwrap any wrapped objects.