使用或不使用http和www的URL验证

所有正则表达式都在这个js fiddle中传递。

当我将这个正则表达式移到asp.net页面时，正则表达式验证器#3、#seven和#eight将被视为无效。

ASP.net：

<asp:RegularExpressionValidator ID="RegularExpressionValidator8" ControlToValidate="txtHomePage"
                                                    runat="server" CssClass="StandardText" Display="Dynamic" SetFocusOnError="true"
                                                    ErrorMessage="Invalid URL" ValidationExpression="^(?!www | www'.)[A-Za-z0-9_-]+'.+[A-Za-z0-9.'/%&='?_:;-]+$"></asp:RegularExpressionValidator>

JavaScript代码：

function checkUrlTest(url){
    //   /^(?:(http|https|ftp):'/'/)?(?:['w-]+'.)+[a-z]{2,6}('/)?/i
    //  ^(?!www | www'.)[A-Za-z0-9_-]+'.+[A-Za-z0-9.'/%&='?_:;-]+$
    var urlregex = new RegExp("^(?!www | www'.)[A-Za-z0-9_-]+'.+[A-Za-z0-9.'/%&='?_:;-]+$")
            return urlregex.test(url);
        }
var one = "yahoo.com";
var two = "www.yahoo.com";
var three = "http://www.yahoo.com";  //fails on .net page
var four = "yahoo.org";
var five = "somesite.org"
var six = "www.somesite.org"
var seven = "http://somesite.org"    //fails on .net page
var eight = "https://www.somesite.org"   //fails on .net page
var nine = "somesite.org?case=1"
        alert(
            one + '===> ' + checkUrlTest(one) + "'n" +
            two + '===> ' + checkUrlTest(two) + "'n" +
            three + '===> ' + checkUrlTest(three) + "'n" +
            four + '===> ' + checkUrlTest(four) + "'n" +
            five + '===> ' + checkUrlTest(five) + "'n" +
            six + '===> ' + checkUrlTest(six) + "'n" +
            seven + '===> ' + checkUrlTest(seven) + "'n" +
            eight + '===> ' + checkUrlTest(eight) + "'n" +
            nine + '===> ' + checkUrlTest(nine)
        );

我找不到这里缺了什么？