WCF 400 Bad Request - wcf

Question

I created a simple function
[OperationContract]
[WebInvoke(Method = "POST", ResponseFormat = WebMessageFormat.Json)]
string Start();
Definition,
public String Start()
{
JavaScriptSerializer serializer = new JavaScriptSerializer();
return serializer.Serialize("Check");
}
From browser using Javascript/Jquery,
http://localhost/service1.svc tells me I have created a service and all other info.. Looks fine.
I'm trying to call this using
http://localhost/service1.svc/Start
I get a 400 bad request for this call. I hope I'm not doing something totally wrong here. I should be able to access WCF service from browser right?
I tried looking a lot before I thought of posting. But I'm unable to get this basic thing working is frustrating me.
EDIT & UPDATE
Now I'm at this stage. The service page is telling me that the metadata service is disabled and is asking me to insert the following text
<serviceMetadata httpGetEnabled="true" />
I inserted the text - but still it shows the same text!! This is getting too confusing now..

Answer 1

Try to change POST with GET and restart the request

Answer 2

Works for me. I created WCF Rest Service.
I use URL which looks like http://localhost:8080/Service1/Start
Here is the code:
using System.ServiceModel;
using System.ServiceModel.Activation;
using System.ServiceModel.Web;
using System.Web.Script.Serialization;
namespace WcfRestService1
{
// Start the service and browse to http://<machine_name>:<port>/Service1/help to view the service's generated help page
// NOTE: By default, a new instance of the service is created for each call; change the InstanceContextMode to Single if you want
// a single instance of the service to process all calls.
[ServiceContract]
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
[ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall)]
// NOTE: If the service is renamed, remember to update the global.asax.cs file
public class Service1
{
[OperationContract]
[WebInvoke(Method = "GET", ResponseFormat = WebMessageFormat.Json)]
public string Start()
{
JavaScriptSerializer serializer = new JavaScriptSerializer();
return serializer.Serialize("Check");
}
}
}