diff --git a/services/common/hawk.js b/services/common/hawk.js
index 3843554e3e83..a13298d16520 100644
--- a/services/common/hawk.js
+++ b/services/common/hawk.js
@@ -194,7 +194,11 @@ HawkClient.prototype = {
     };
 
     let request = new HAWKAuthenticatedRESTRequest(uri, credentials, extra);
-    request[method](payloadObj, onComplete);
+    if (method == "post" || method == "put") {
+      request[method](payloadObj, onComplete);
+    } else {
+      request[method](onComplete);
+    }
 
     return deferred.promise;
   }
diff --git a/services/common/rest.js b/services/common/rest.js
index f53bdfff5033..310fa77b3d44 100644
--- a/services/common/rest.js
+++ b/services/common/rest.js
@@ -763,19 +763,25 @@ HAWKAuthenticatedRESTRequest.prototype = {
   __proto__: RESTRequest.prototype,
 
   dispatch: function dispatch(method, data, onComplete, onProgress) {
+    let contentType = "text/plain";
+    if (method == "POST" || method == "PUT") {
+      contentType = "application/json";
+    }
     if (this.credentials) {
       let options = {
         now: this.now,
         localtimeOffsetMsec: this.localtimeOffsetMsec,
         credentials: this.credentials,
         payload: data && JSON.stringify(data) || "",
-        contentType: "application/json; charset=utf-8",
+        contentType: contentType,
       };
       let header = CryptoUtils.computeHAWK(this.uri, method, options);
       this.setHeader("Authorization", header.field);
       this._log.trace("hawk auth header: " + header.field);
     }
 
+    this.setHeader("Content-Type", contentType);
+
     return RESTRequest.prototype.dispatch.call(
       this, method, data, onComplete, onProgress
     );
diff --git a/services/fxaccounts/FxAccounts.jsm b/services/fxaccounts/FxAccounts.jsm
index 23d20394e5de..56bd86b2baba 100644
--- a/services/fxaccounts/FxAccounts.jsm
+++ b/services/fxaccounts/FxAccounts.jsm
@@ -385,15 +385,6 @@ InternalMethods.prototype = {
     Services.obs.notifyObservers(null, topic, null);
   },
 
-  /**
-   * Give xpcshell tests an override point for duration testing. This is
-   * necessary because the tests need to manipulate the date in order to
-   * simulate certificate expiration.
-   */
-  now: function() {
-    return Date.now();
-  },
-
   pollEmailStatus: function pollEmailStatus(sessionToken, why) {
     let myGenerationCount = this.generationCount;
     log.debug("entering pollEmailStatus: " + why + " " + myGenerationCount);
@@ -489,6 +480,20 @@ this.FxAccounts = function(mockInternal) {
 this.FxAccounts.prototype = Object.freeze({
   version: DATA_FORMAT_VERSION,
 
+  now: function() {
+    if (this.internal) {
+      return this.internal.now();
+    }
+    return internal.now();
+  },
+
+  get localtimeOffsetMsec() {
+    if (this.internal) {
+      return this.internal.localtimeOffsetMsec;
+    }
+    return internal.localtimeOffsetMsec;
+  },
+
   // set() makes sure that polling is happening, if necessary.
   // get() does not wait for verification, and returns an object even if
   // unverified. The caller of get() must check .verified .
@@ -620,7 +625,6 @@ this.FxAccounts.prototype = Object.freeze({
     return internal.whenVerified(userData);
   },
 
-
   /**
    * Sign the current user out.
    *
@@ -656,7 +660,7 @@ this.FxAccounts.prototype = Object.freeze({
       newQueryPortion += "email=" + encodeURIComponent(accountData.email);
       return url + newQueryPortion;
     });
-  },
+  }
 
 });
 
diff --git a/services/sync/modules/browserid_identity.js b/services/sync/modules/browserid_identity.js
index 9b370268e320..8e1d38158ab5 100644
--- a/services/sync/modules/browserid_identity.js
+++ b/services/sync/modules/browserid_identity.js
@@ -211,11 +211,11 @@ this.BrowserIDManager.prototype = {
    * Provide override point for testing token expiration.
    */
   _now: function() {
-    return this._fxaService.internal.now()
+    return this._fxaService.now()
   },
 
   get _localtimeOffsetMsec() {
-    return this._fxaService.internal.localtimeOffsetMsec;
+    return this._fxaService.localtimeOffsetMsec;
   },
 
   get account() {
diff --git a/services/sync/tests/unit/test_browserid_identity.js b/services/sync/tests/unit/test_browserid_identity.js
index acecf3852047..66eeda175e1e 100644
--- a/services/sync/tests/unit/test_browserid_identity.js
+++ b/services/sync/tests/unit/test_browserid_identity.js
@@ -136,13 +136,21 @@ add_test(function test_resourceAuthenticatorSkew() {
   do_check_eq(fxa.internal.now(), now);
   do_check_eq(fxa.internal.localtimeOffsetMsec, localtimeOffsetMsec);
 
+  do_check_eq(fxa.now(), now);
+  do_check_eq(fxa.localtimeOffsetMsec, localtimeOffsetMsec);
+
   // Mocks within mocks...
   configureFxAccountIdentity(browseridManager, identityConfig);
   browseridManager._fxaService = fxa;
+
   do_check_eq(browseridManager._fxaService.internal.now(), now);
   do_check_eq(browseridManager._fxaService.internal.localtimeOffsetMsec,
       localtimeOffsetMsec);
 
+  do_check_eq(browseridManager._fxaService.now(), now);
+  do_check_eq(browseridManager._fxaService.localtimeOffsetMsec,
+      localtimeOffsetMsec);
+
   let request = new SyncStorageRequest("https://example.net/i/like/pie/");
   let authenticator = browseridManager.getResourceAuthenticator();
   let output = authenticator(request, 'GET');