Fix #13274: Wrap sourceMap directive in multiline comments. Close gh-1143.

Gruntfile.js

@@ -409,7 +409,7 @@ module.exports = function( grunt ) {
 			nonascii = false;
 
 		distpaths.forEach(function( filename ) {
-			var i, c,
+			var i, c, map,
 				text = fs.readFileSync( filename, "utf8" );
 
 			// Ensure files use only \n for line endings, not \r\n
@@ -438,7 +438,18 @@ module.exports = function( grunt ) {
 				text = text.replace( /"dist\//g, "\"" );
 				fs.writeFileSync( filename, text, "utf-8" );
 			} else if ( /\.min\.js$/.test( filename ) ) {
-				text = text.replace( /sourceMappingURL=dist\//, "sourceMappingURL=" );
+				// Wrap sourceMap directive in multiline comments (#13274)
+				text = text.replace( /\n?(\/\/@\s*sourceMappingURL=)(.*)/,
+					function( _, directive, path ) {
+						map = "\n" + directive + path.replace( /^dist\//, "" );
+						return "";
+					});
+				if ( map ) {
+					text = text.replace( /(^\/\*[\w\W]*?)\s*\*\/|$/,
+						function( _, comment ) {
+							return ( comment || "\n/*" ) + map + "\n*/";
+						});
+				}
 				fs.writeFileSync( filename, text, "utf-8" );
 			}
 

test/data/core/cc_on.html

+<!DOCTYPE html>
+<html lang="en">
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+	<script>
+		var cc_on = false,
+			errors = [];
+/*@cc_on
+		cc_on = true;
+@*/
+		window.onerror = function( errorMessage, filePath, lineNumber ) {
+			errors.push( errorMessage );
+		};
+	</script>
+	<script src="../../../dist/jquery.min.js"></script>
+</head>
+<body>
+	<script>
+		window.parent.iframeCallback( cc_on, errors, jQuery );
+	</script>
+</body>
+</html>

test/unit/core.js

@@ -17,6 +17,13 @@ test("Basic requirements", function() {
 	ok( $, "$" );
 });
 
+testIframeWithCallback( "Conditional compilation compatibility (#13274)", "core/cc_on.html", function( cc_on, errors, $ ) {
+	expect( 3 );
+	ok( true, "JScript conditional compilation " + ( cc_on ? "supported" : "not supported" ) );
+	deepEqual( errors, [], "No errors" );
+	ok( $(), "jQuery executes" );
+});
+
 test("jQuery()", function() {
 
 	var elem, i,