Merge pull request #1467 from stealjs/cf

Prevent using babel-code-frame in older browsers
stealjs · Oct 5, 2018 · 82f5e6f · 82f5e6f
2 parents f472b16 + 34b028b
commit 82f5e6f
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Showing 6 changed files with 42 additions and 2 deletions.
diff --git a/main.js b/main.js
@@ -791,7 +791,17 @@ addStealExtension(function (loader) {
 		}
 	}
 
+	var _supportsProto = (function(){
+		var foo = {};
+		foo.__proto__ = { bar: "baz" };
+		return foo.bar === "baz";
+	})();
+
 	loader.loadCodeFrame = function(){
+		if(!_supportsProto) {
+			return Promise.resolve();
+		}
+
 		if(!this.global.process) {
 			this.global.process = { argv: '', env: {} };
 		}

diff --git a/src/extension-stack-trace.js b/src/extension-stack-trace.js
@@ -118,7 +118,17 @@ addStealExtension(function (loader) {
 		}
 	}
 
+	var _supportsProto = (function(){
+		var foo = {};
+		foo.__proto__ = { bar: "baz" };
+		return foo.bar === "baz";
+	})();
+
 	loader.loadCodeFrame = function(){
+		if(!_supportsProto) {
+			return Promise.resolve();
+		}
+
 		if(!this.global.process) {
 			this.global.process = { argv: '', env: {} };
 		}

diff --git a/steal-sans-promises.js b/steal-sans-promises.js
@@ -5523,7 +5523,17 @@ addStealExtension(function (loader) {
 		}
 	}
 
+	var _supportsProto = (function(){
+		var foo = {};
+		foo.__proto__ = { bar: "baz" };
+		return foo.bar === "baz";
+	})();
+
 	loader.loadCodeFrame = function(){
+		if(!_supportsProto) {
+			return Promise.resolve();
+		}
+
 		if(!this.global.process) {
 			this.global.process = { argv: '', env: {} };
 		}

diff --git a/steal-sans-promises.production.js b/steal-sans-promises.production.js
diff --git a/steal.js b/steal.js
@@ -6793,7 +6793,17 @@ addStealExtension(function (loader) {
 		}
 	}
 
+	var _supportsProto = (function(){
+		var foo = {};
+		foo.__proto__ = { bar: "baz" };
+		return foo.bar === "baz";
+	})();
+
 	loader.loadCodeFrame = function(){
+		if(!_supportsProto) {
+			return Promise.resolve();
+		}
+
 		if(!this.global.process) {
 			this.global.process = { argv: '', env: {} };
 		}

diff --git a/steal.production.js b/steal.production.js