replace 'instanceof Buffer' with Buffer.isBuffer()

To support buffers that come from other contexts like iframes, or Buffers that come from multiple version of buffer embedded in the same browserify bundle

Always use Buffer.isBuffer!!!

diff --git a/index.js b/index.js
index 9d0f800c188a8b85577784ede88be52421eff713..db555139693750a8d8f83ceeb074fbc418c6342b 100644 (file)
--- a/index.js
+++ b/index.js
@@ -55,7 +55,7 @@ function typedArraySupport () {
 
 Object.defineProperty(Buffer.prototype, 'parent', {
   get: function () {
-    if (!(this instanceof Buffer)) {
+    if (!Buffer.isBuffer(this)) {
       return undefined
     }
     return this.buffer
@@ -64,7 +64,7 @@ Object.defineProperty(Buffer.prototype, 'parent', {
 
 Object.defineProperty(Buffer.prototype, 'offset', {
   get: function () {
-    if (!(this instanceof Buffer)) {
+    if (!Buffer.isBuffer(this)) {
       return undefined
     }
     return this.byteOffset