fix(linky): do not throw on non-string values

src/ngSanitize/filter/linky.js

@@ -133,9 +133,10 @@ angular.module('ngSanitize').filter('linky', ['$sanitize', function($sanitize) {
   var LINKY_URL_REGEXP =
         /((ftp|https?):\/\/|(www\.)|(mailto:)?[A-Za-z0-9._%+-]+@)\S*[^\s.;,(){}<>"\u201d\u2019]/i,
       MAILTO_REGEXP = /^mailto:/i;
+  var isString = angular.isString;
 
   return function(text, target, attributes) {
-    if (!text) return text;
+    if (!text || !isString(text)) return text;
     var match;
     var raw = text;
     var html = [];

test/ngSanitize/filter/linkySpec.js

@@ -20,6 +20,14 @@ describe('linky', function() {
     expect(linky(undefined)).not.toBeDefined();
   });
 
+  it('should return non-string, truthy values unchanged', function() {
+    expect(linky(true)).toBe(true);
+    expect(linky(42)).toBe(42);
+    expect(linky([])).toEqual([]);
+    expect(linky({})).toEqual({});
+    expect(linky(noop)).toBe(noop);
+  });
+
   it('should be case-insensitive', function() {
     expect(linky('WWW.example.com')).toEqual('<a href="http://WWW.example.com">WWW.example.com</a>');
     expect(linky('WWW.EXAMPLE.COM')).toEqual('<a href="http://WWW.EXAMPLE.COM">WWW.EXAMPLE.COM</a>');