Allow null overrides in options for target and className

src/linkify/utils/options.js

@@ -23,13 +23,13 @@ function Options(opts) {
 	this.formatHref = opts.formatHref || defaults.formatHref;
 	this.nl2br = opts.nl2br || defaults.nl2br;
 	this.tagName = opts.tagName || defaults.tagName;
-	this.target = opts.target || defaults.target;
+	this.target = opts.hasOwnProperty('target') ? opts.target : defaults.target;
 	this.validate = opts.validate || defaults.validate;
 	this.ignoreTags = [];
 
 	// linkAttributes and linkClass is deprecated
 	this.attributes = opts.attributes || opts.linkAttributes || defaults.attributes;
-	this.className = opts.className || opts.linkClass || defaults.className;
+	this.className = opts.hasOwnProperty('className') ? opts.className : (opts.linkClass || defaults.className);
 
 	// Make all tags names upper case
 

test/spec/linkify/utils/options-test.js

@@ -111,4 +111,27 @@ describe('linkify/utils/options', () => {
 			});
 		});
 	});
+
+	describe('Nullifying Options', () => {
+		var opts;
+
+		beforeEach(() => {
+			opts = new Options({
+				target: null,
+				className: null
+			});
+		});
+
+		describe('target', () => {
+			it('should be nulled', () => {
+				expect(opts.target).to.be.null;
+			});
+		});
+
+		describe('className', () => {
+			it('should be nulled', () => {
+				expect(opts.className).to.be.null;
+			});
+		});
+	});
 });