diff --git a/lib/RequireJsStuffPlugin.js b/lib/RequireJsStuffPlugin.js
index d0ef5893716..42a39d53601 100644
--- a/lib/RequireJsStuffPlugin.js
+++ b/lib/RequireJsStuffPlugin.js
@@ -23,7 +23,7 @@ module.exports = class RequireJsStuffPlugin {
 				parser.plugin("call requirejs.config", ParserHelpers.toConstantDependency("undefined"));
 
 				parser.plugin("expression require.version", ParserHelpers.toConstantDependency(JSON.stringify("0.0.0")));
-				parser.plugin("expression requirejs.onError", ParserHelpers.toConstantDependency(JSON.stringify("__webpack_require__.oe")));
+				parser.plugin("expression requirejs.onError", ParserHelpers.toConstantDependency("__webpack_require__.oe"));
 			});
 		});
 	}
diff --git a/lib/dependencies/CommonJsPlugin.js b/lib/dependencies/CommonJsPlugin.js
index eb367534667..ef9af51ccc7 100644
--- a/lib/dependencies/CommonJsPlugin.js
+++ b/lib/dependencies/CommonJsPlugin.js
@@ -54,7 +54,7 @@ class CommonJsPlugin {
 
 				const requireExpressions = ["require", "require.resolve", "require.resolveWeak"];
 				for(let expression of requireExpressions) {
-					parser.plugin(`typeof ${expression}`, ParserHelpers.toConstantDependency("function"));
+					parser.plugin(`typeof ${expression}`, ParserHelpers.toConstantDependency(JSON.stringify("function")));
 					parser.plugin(`evaluate typeof ${expression}`, ParserHelpers.evaluateToString("function"));
 					parser.plugin(`evaluate Identifier ${expression}`, ParserHelpers.evaluateToIdentifier(expression, true));
 				}
diff --git a/test/RequireJsStuffPlugin.test.js b/test/RequireJsStuffPlugin.test.js
index b7eae9d72f4..6c5d8e87110 100644
--- a/test/RequireJsStuffPlugin.test.js
+++ b/test/RequireJsStuffPlugin.test.js
@@ -170,7 +170,7 @@ describe("RequireJsStuffPlugin", () => {
 									const addDependencySpy = parserEventContext.state.current.addDependency;
 									const addedDependency = JSON.stringify(addDependencySpy.getCall(0).args[0]);
 									addDependencySpy.callCount.should.be.exactly(1);
-									addedDependency.should.be.exactly('{"module":null,"expression":"\\"__webpack_require__.oe\\"","range":10,"loc":5}');
+									addedDependency.should.be.exactly('{"module":null,"expression":"__webpack_require__.oe","range":10,"loc":5}');
 								});
 							});
 						});
diff --git a/test/cases/parsing/requirejs/file.js b/test/cases/parsing/requirejs/file.js
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/test/cases/parsing/requirejs/index.js b/test/cases/parsing/requirejs/index.js
index 9f94c94bdf1..37ea0ef2f65 100644
--- a/test/cases/parsing/requirejs/index.js
+++ b/test/cases/parsing/requirejs/index.js
@@ -1,11 +1,20 @@
 it("should ignore require.config", function() {
 	require.config({
-	
+
 	});
 	requirejs.config({
-	
+
 	});
 });
 it("should have a require.version", function() {
 	require.version.should.be.type("string");
 });
+it("should have a requirejs.onError function", function() {
+	function f(){}
+	requirejs.onError.should.be.type("function"); // has default handler
+	var org = requirejs.onError;
+	requirejs.onError = f;
+	requirejs.onError.should.be.eql(f);
+	requirejs.onError = org;
+	require(["./file.js"], function() {});
+});
diff --git a/test/cases/parsing/typeof/index.js b/test/cases/parsing/typeof/index.js
index 15b8edbd53e..a3142febb7f 100644
--- a/test/cases/parsing/typeof/index.js
+++ b/test/cases/parsing/typeof/index.js
@@ -26,6 +26,9 @@ it("should answer typeof require.include correctly", function() {
 it("should answer typeof require.ensure correctly", function() {
 	(typeof require.ensure).should.be.eql("function");
 });
+it("should answer typeof require.resolve correctly", function() {
+	(typeof require.resolve).should.be.eql("function");
+});
 it("should answer typeof System correctly", function() {
 	(typeof System).should.be.eql("object");
 });
@@ -41,6 +44,7 @@ it("should not parse filtered stuff", function() {
 	if(!(typeof require === "function")) require("fail");
 	if(typeof require == "undefined") require = require("fail");
 	if(typeof require === "undefined") require = require("fail");
+	if(typeof require.resolve !== "function") require("fail");
 	if(typeof module == "undefined") module = require("fail");
 	if(typeof module === "undefined") module = require("fail");
 	if(typeof module != "object") module = require("fail");