Added ability to pass option into unstate.

docs/Reference.md

@@ -1955,8 +1955,10 @@ It provides the following methods:
     - `msec` - the time-to-live value in milliseconds.
 - `type(mimeType)` - sets the HTTP 'Content-Type' header where:
     - `value` - is the mime type. Should only be used to override the built-in default for each response type.
-- `unstate(name)` - clears the HTTP cookie by setting an expired value where:
+- `unstate(name, [options])` - clears the HTTP cookie by setting an expired value where:
     - `name` - the cookie name.
+    - `options` - optional configuration for expiring cookie. If the state was previously registered with the server using [`server.state()`](#serverstatename-options),
+          the specified keys in `options` override those same keys in the server definition (but not others).
 - `vary(header)` - adds the provided header to the list of inputs affected the response generation via the HTTP 'Vary' header where:
     - `header` - the HTTP request header name.
 

lib/request.js

@@ -459,15 +459,15 @@ internals.Request.prototype._setState = function (name, value, options) {
 };
 
 
-internals.Request.prototype._clearState = function (name) {
+internals.Request.prototype._clearState = function (name, options) {
 
     var state = {
-        name: name,
-        options: {
-            ttl: 0
-        }
+        name: name
     };
 
+    state.options = Hoek.clone(options || {});
+    state.options.ttl = 0;
+
     this._states[name] = state;
 };
 

lib/response/message.js

@@ -340,9 +340,9 @@ internals.Message.prototype.state = function (name, value, options) {          /
 };
 
 
-internals.Message.prototype.unstate = function (name) {
+internals.Message.prototype.unstate = function (name, options) {
 
-    this.request._clearState(name);
+    this.request._clearState(name, options);
     return this;
 };
 

test/response.js

@@ -3306,6 +3306,24 @@ describe('Response', function () {
         });
     });
 
+    it('allows options into unstage()', function (done) {
+
+        var handler = function (request, reply) {
+
+            reply().unstate('session', { path: '/unset', isSecure: true });
+        };
+
+        var server = new Hapi.Server();
+        server.route({ method: 'GET', path: '/', handler: handler });
+
+        server.inject('/', function (unset) {
+
+            expect(unset.statusCode).to.equal(200);
+            expect(unset.headers['set-cookie']).to.deep.equal(['session=; Max-Age=0; Expires=Thu, 01 Jan 1970 00:00:00 GMT; Secure; Path=/unset']);
+            done();
+        });
+    });
+
     describe('Payload', function () {
 
         it('handles undefined data', function (done) {