diff --git a/addons/web/static/src/js/core/ajax.js b/addons/web/static/src/js/core/ajax.js
index cf5fe87b2ae..67a46e29d55 100644
--- a/addons/web/static/src/js/core/ajax.js
+++ b/addons/web/static/src/js/core/ajax.js
@@ -428,6 +428,8 @@ var loadXML = (function () {
  * Loads a template file according to the given xmlId.
  *
  * @param {string} [xmlId] - the template xmlId
+ * @param {Object} [context]
+ *        additionnal rpc context to be merged with the default one
  * @returns {Deferred} resolved with an object
  *          cssLibs: list of css files
  *          cssContents: list of style tag contents
@@ -437,16 +439,17 @@ var loadXML = (function () {
 var loadAsset = (function () {
     var cache = {};
 
-    var load = function loadAsset(xmlId) {
+    var load = function loadAsset(xmlId, context) {
         if (cache[xmlId]) {
             return Promise.resolve(cache[xmlId]);
         }
+        context = _.extend({}, odoo.session_info.user_context, context);
         var params = {
             args: [xmlId, {
                 debug: config.isDebug()
             }],
             kwargs: {
-                context: odoo.session_info.user_context,
+                context: context,
             },
             method: 'render_template',
             model: 'ir.ui.view',
@@ -499,10 +502,12 @@ var loadAsset = (function () {
  *      List of inline styles to add after loading the CSS files.
  * @param {string[]} [libs.jsContents=[]]
  *      List of inline scripts to add after loading the JS files.
+ * @param {Object} [context]
+ *        additionnal rpc context to be merged with the default one
  *
  * @returns {Promise}
  */
-function loadLibs(libs) {
+function loadLibs(libs, context) {
     var mutex = new concurrency.Mutex();
     mutex.exec(function () {
         var defs = [];
@@ -525,7 +530,7 @@ function loadLibs(libs) {
     });
     mutex.exec(function () {
         return _loadArray(libs.assetLibs || [], function (xmlID) {
-            return ajax.loadAsset(xmlID).then(function (asset) {
+            return ajax.loadAsset(xmlID, context).then(function (asset) {
                 return ajax.loadLibs(asset);
             });
         });
diff --git a/addons/web/static/src/js/core/service_mixins.js b/addons/web/static/src/js/core/service_mixins.js
index 0576364fa7c..9e6a40b494c 100644
--- a/addons/web/static/src/js/core/service_mixins.js
+++ b/addons/web/static/src/js/core/service_mixins.js
@@ -123,6 +123,15 @@ var ServicesMixin = {
         });
         return result;
     },
+    /**
+     * @private
+     * @param {Object} libs - @see ajax.loadLibs
+     * @param {Object} [context] - @see ajax.loadLibs
+     * @returns {Promise}
+     */
+    _loadLibs: function (libs, context) {
+        return this.call('ajax', 'loadLibs', libs, context);
+    },
     /**
      * Builds and executes RPC query. Returns a promise resolved with
      * the RPC result.
diff --git a/addons/web/static/src/js/core/widget.js b/addons/web/static/src/js/core/widget.js
index c6530b7fb7a..a089f8876fe 100644
--- a/addons/web/static/src/js/core/widget.js
+++ b/addons/web/static/src/js/core/widget.js
@@ -148,7 +148,7 @@ var Widget = core.Class.extend(mixins.PropertiesMixin, ServicesMixin, {
             }));
         }
         if (this.jsLibs || this.cssLibs || this.assetLibs) {
-            proms.push(ajax.loadLibs(this));
+            proms.push(this._loadLibs(this));
         }
         return Promise.all(proms);
     },
diff --git a/addons/web/static/src/js/public/public_root.js b/addons/web/static/src/js/public/public_root.js
index a567734546b..33d442e1d76 100644
--- a/addons/web/static/src/js/public/public_root.js
+++ b/addons/web/static/src/js/public/public_root.js
@@ -101,15 +101,25 @@ var PublicRoot = publicWidget.RootWidget.extend(ServiceProviderMixin, {
             if (_.str.startsWith(route, '/web/dataset/call_kw/')) {
                 var params = ev.data.args[1];
                 var options = ev.data.args[2];
-                params.kwargs.context = _.extend({}, this._getContext(), params.kwargs.context || {});
+                var noContextKeys = undefined;
                 if (options) {
-                    params.kwargs.context = _.omit(params.kwargs.context, options.noContextKeys);
+                    noContextKeys = options.noContextKeys;
                     ev.data.args[2] = _.omit(options, 'noContextKeys');
                 }
-                params.kwargs.context = JSON.parse(JSON.stringify(params.kwargs.context));
+                params.kwargs.context = _computeContext.call(this, params.kwargs.context, noContextKeys);
             }
+        } else if (ev.data.service === 'ajax' && ev.data.method === 'loadLibs') {
+            ev.data.args[1] = _computeContext.call(this, ev.data.args[1]);
         }
         return ServiceProviderMixin._call_service.apply(this, arguments);
+
+        function _computeContext(context, noContextKeys) {
+            context = _.extend({}, this._getContext(), context);
+            if (noContextKeys) {
+                context = _.omit(context, noContextKeys);
+            }
+            return JSON.parse(JSON.stringify(context));
+        }
     },
     /**
      * Retrieves the global context of the public environment. This is the
diff --git a/addons/web/static/src/js/services/ajax_service.js b/addons/web/static/src/js/services/ajax_service.js
index cb83dd9d553..f2fc3436991 100644
--- a/addons/web/static/src/js/services/ajax_service.js
+++ b/addons/web/static/src/js/services/ajax_service.js
@@ -2,10 +2,18 @@ odoo.define('web.AjaxService', function (require) {
 "use strict";
 
 var AbstractService = require('web.AbstractService');
+var ajax = require('web.ajax');
 var core = require('web.core');
 var session = require('web.session');
 
 var AjaxService = AbstractService.extend({
+    /**
+     * @param {Object} libs - @see ajax.loadLibs
+     * @param {Object} [context] - @see ajax.loadLibs
+     */
+    loadLibs: function (libs, context) {
+        return ajax.loadLibs(libs, context);
+    },
     rpc: function (route, args, options, target) {
         var rpcPromise;
         var promise = new Promise(function (resolve, reject) {
diff --git a/addons/web/static/tests/helpers/test_utils_mock.js b/addons/web/static/tests/helpers/test_utils_mock.js
index fe45bbb0e8e..e72dcc0d692 100644
--- a/addons/web/static/tests/helpers/test_utils_mock.js
+++ b/addons/web/static/tests/helpers/test_utils_mock.js
@@ -253,7 +253,7 @@ function addMockEnvironment(widget, params) {
             var service = services[ev.data.service];
             args = (ev.data.args || []);
             result = service[ev.data.method].apply(service, args);
-        } else if (ev.data.service === 'ajax') {
+        } else if (ev.data.service === 'ajax' && ev.data.method === 'rpc') {
             // use ajax service that is mocked by the server
             var route = ev.data.args[0];
             args = ev.data.args[1];
diff --git a/addons/website/static/tests/tours/specific_website_editor.js b/addons/website/static/tests/tours/specific_website_editor.js
new file mode 100644
index 00000000000..b51256670b1
--- /dev/null
+++ b/addons/website/static/tests/tours/specific_website_editor.js
@@ -0,0 +1,29 @@
+odoo.define('website.tour.specific_website_editor', function (require) {
+'use strict';
+
+var tour = require('web_tour.tour');
+
+tour.register('generic_website_editor', {
+    test: true,
+}, [{
+    trigger: 'a[data-action=edit]',
+    content: 'Click edit button',
+}, {
+    trigger: 'body:not([data-hello="world"])',
+    extra_trigger: '#oe_snippets.o_loaded',
+    content: 'Check that the editor DOM matches its website-generic features',
+    run: function () {}, // Simple check
+}]);
+
+tour.register('specific_website_editor', {
+    test: true,
+}, [{
+    trigger: 'a[data-action=edit]',
+    content: 'Click edit button',
+}, {
+    trigger: 'body[data-hello="world"]',
+    extra_trigger: '#oe_snippets.o_loaded',
+    content: 'Check that the editor DOM matches its website-specific features',
+    run: function () {}, // Simple check
+}]);
+});
diff --git a/addons/website/tests/test_ui.py b/addons/website/tests/test_ui.py
index 98e06dc7924..b0bfa241226 100644
--- a/addons/website/tests/test_ui.py
+++ b/addons/website/tests/test_ui.py
@@ -112,3 +112,21 @@ class TestUi(odoo.tests.HttpCase):
 
     def test_04_backend_dashboard(self):
         self.start_tour("/", 'backend_dashboard', login='admin')
+
+    def test_05_specific_website_editor(self):
+        website_default = self.env['website'].search([], limit=1)
+        new_website = self.env['website'].create({'name': 'New Website'})
+        website_editor_assets_view = self.env.ref('website.assets_wysiwyg')
+        self.env['ir.ui.view'].create({
+            'name': 'Editor Extension',
+            'type': 'qweb',
+            'inherit_id': website_editor_assets_view.id,
+            'website_id': new_website.id,
+            'arch': """
+                <xpath expr="." position="inside">
+                    <script type="text/javascript">document.body.dataset.hello = 'world';</script>
+                </xpath>
+            """,
+        })
+        self.start_tour("/?fw=%s" % website_default.id, "generic_website_editor", login='admin')
+        self.start_tour("/?fw=%s" % new_website.id, "specific_website_editor", login='admin')
diff --git a/addons/website/views/assets.xml b/addons/website/views/assets.xml
index 56500ba06c5..7046d544cb2 100644
--- a/addons/website/views/assets.xml
+++ b/addons/website/views/assets.xml
@@ -24,6 +24,7 @@
         <script type="text/javascript" src="/website/static/tests/tours/html_editor.js"/>
         <script type="text/javascript" src="/website/static/tests/tours/restricted_editor.js"/>
         <script type="text/javascript" src="/website/static/tests/tours/dashboard_tour.js"/>
+        <script type="text/javascript" src="/website/static/tests/tours/specific_website_editor.js"/>
     </xpath>
 </template>