From 62f0d62882b12acc6a1aadd92bab8dd580ebad12 Mon Sep 17 00:00:00 2001
From: Kevin Phillips <kevin@bitovi.com>
Date: Fri, 22 Jun 2018 12:26:21 -0500
Subject: [PATCH] making sure to actually set __CANJS_DEVTOOLS__ global

---
 can-debug-test.js | 26 +++++++++++++++-----------
 can-debug.js      | 15 ++++++++++-----
 2 files changed, 25 insertions(+), 16 deletions(-)

diff --git a/can-debug-test.js b/can-debug-test.js
index 140c209..71073f5 100644
--- a/can-debug-test.js
+++ b/can-debug-test.js
@@ -75,6 +75,20 @@ testHelpers.dev.devOnlyTest("calls window.__CANJS_DEVTOOLS__.register if availab
 testHelpers.dev.devOnlyTest("calls window.__CANJS_DEVTOOLS__.register if __CANJS_DEVTOOLS__ is set later", function(assert) {
 	var done = assert.async();
 	var fakeWindow = {};
+	var fakeDevtoolsGlobal = {
+		register: function(can) {
+			assert.ok("Symbol" in can, "can.Symbol passed");
+			assert.ok("Reflect" in can, "can.Reflect passed");
+			assert.ok("queues" in can, "can.queues passed");
+			assert.ok("getGraph" in can, "can.getGraph passed");
+			assert.ok("formatGraph" in can, "can.formatGraph passed");
+			assert.ok("mergeDeep" in can, "can.mergeDeep passed");
+
+			assert.equal(fakeWindow.__CANJS_DEVTOOLS__, fakeDevtoolsGlobal, "sets window.__CANJS_DEVTOOLS__");
+
+			done();
+		}
+	};
 
 	clone({
 		"can-globals": {
@@ -89,16 +103,6 @@ testHelpers.dev.devOnlyTest("calls window.__CANJS_DEVTOOLS__.register if __CANJS
 	})
 	.import("can-debug")
 	.then(function() {
-		fakeWindow.__CANJS_DEVTOOLS__ = {
-			register: function(can) {
-				assert.ok("Symbol" in can, "can.Symbol passed");
-				assert.ok("Reflect" in can, "can.Reflect passed");
-				assert.ok("queues" in can, "can.queues passed");
-				assert.ok("getGraph" in can, "can.getGraph passed");
-				assert.ok("formatGraph" in can, "can.formatGraph passed");
-				assert.ok("mergeDeep" in can, "can.mergeDeep passed");
-				done();
-			}
-		};
+		fakeWindow.__CANJS_DEVTOOLS__ = fakeDevtoolsGlobal;
 	});
 });
diff --git a/can-debug.js b/can-debug.js
index 9d651fe..9403753 100644
--- a/can-debug.js
+++ b/can-debug.js
@@ -38,14 +38,19 @@ var devtoolsCanModules = {
 	formatGraph: namespace.debug.formatGraph,
 	mergeDeep: mergeDeep
 };
+var devtoolsGlobalName =  "__CANJS_DEVTOOLS__";
 
-if (global.__CANJS_DEVTOOLS__) {
-	global.__CANJS_DEVTOOLS__.register(devtoolsCanModules);
+if (global[devtoolsGlobalName]) {
+	global[devtoolsGlobalName].register(devtoolsCanModules);
 } else {
-	Object.defineProperty(global, "__CANJS_DEVTOOLS__", {
+	Object.defineProperty(global, devtoolsGlobalName, {
 		set: function(devtoolsGlobal) {
+			Object.defineProperty(global, devtoolsGlobalName, {
+				value: devtoolsGlobal
+			});
+
 			devtoolsGlobal.register(devtoolsCanModules);
-			return devtoolsGlobal;
-		}
+		},
+		configurable: true
 	});
 }