prevent caching of GET requests for xblock student view

STUD-1691

cms/static/coffee/spec/views/module_edit_spec.coffee

@@ -87,6 +87,7 @@ define ["jquery", "js/spec_helpers/edit_helpers", "coffee/src/views/module_edit"
             expect($.ajax).toHaveBeenCalledWith(
               url: "/xblock/#{@moduleEdit.model.id}/student_view"
               type: "GET"
+              cache: false
               headers:
                 Accept: 'application/json'
               success: jasmine.any(Function)
@@ -107,6 +108,7 @@ define ["jquery", "js/spec_helpers/edit_helpers", "coffee/src/views/module_edit"
             expect($.ajax).not.toHaveBeenCalledWith(
               url: "/xblock/#{@moduleEdit.model.id}/studio_view"
               type: "GET"
+              cache : false
               headers:
                 Accept: 'application/json'
               success: jasmine.any(Function)
@@ -131,6 +133,7 @@ define ["jquery", "js/spec_helpers/edit_helpers", "coffee/src/views/module_edit"
             expect($.ajax).toHaveBeenCalledWith(
               url: "/xblock/#{@moduleEdit.model.id}/studio_view"
               type: "GET"
+              cache: false
               headers:
                 Accept: 'application/json'
               success: jasmine.any(Function)

cms/static/coffee/src/views/module_edit.coffee

@@ -38,6 +38,7 @@ define ["jquery", "underscore", "gettext", "xblock/runtime.v1",
         $.ajax(
           url: "#{decodeURIComponent(@model.url())}/#{viewName}"
           type: 'GET'
+          cache: false
           headers:
             Accept: 'application/json'
           success: (fragment) =>

cms/static/js/spec/views/pages/container_spec.js

@@ -96,9 +96,7 @@ define(["jquery", "underscore", "js/spec_helpers/create_sinon", "js/spec_helpers
                     editButtons.first().click();
 
                     // Expect a request to be made to show the studio view for the container
-                    expect(lastRequest().url).toBe(
-                        '/xblock/locator-container/studio_view'
-                    );
+                    expect(lastRequest().url.startsWith('/xblock/locator-container/studio_view')).toBeTruthy();
                     create_sinon.respondWithJson(requests, {
                         html: mockContainerXBlockHtml,
                         resources: []
@@ -114,9 +112,7 @@ define(["jquery", "underscore", "js/spec_helpers/create_sinon", "js/spec_helpers
                     expect(edit_helpers.isShowingModal()).toBeFalsy();
 
                     // Expect the last request be to refresh the container page
-                    expect(lastRequest().url).toBe(
-                        '/xblock/locator-container/container_preview'
-                    );
+                    expect(lastRequest().url.startsWith('/xblock/locator-container/container_preview')).toBeTruthy();
                     create_sinon.respondWithJson(requests, {
                         html: mockUpdatedContainerXBlockHtml,
                         resources: []
@@ -153,9 +149,7 @@ define(["jquery", "underscore", "js/spec_helpers/create_sinon", "js/spec_helpers
                     expect(editButtons.length).toBe(6);
                     editButtons[0].click();
                     // Make sure that the correct xblock is requested to be edited
-                    expect(lastRequest().url).toBe(
-                        '/xblock/locator-component-A1/studio_view'
-                    );
+                    expect(lastRequest().url.startsWith('/xblock/locator-component-A1/studio_view')).toBeTruthy();
                     create_sinon.respondWithJson(requests, {
                         html: mockXBlockEditorHtml,
                         resources: []

cms/static/js/spec/views/unit_spec.js

@@ -204,9 +204,7 @@ define(["jquery", "underscore", "jasmine", "coffee/src/views/unit", "js/models/m
                     expect(editButtons.length).toBe(2);
                     editButtons[1].click();
                     // Make sure that the correct xblock is requested to be edited
-                    expect(lastRequest().url).toBe(
-                        '/xblock/loc_2/studio_view'
-                    );
+                    expect(lastRequest().url.startsWith('/xblock/loc_2/studio_view')).toBeTruthy();
                     create_sinon.respondWithJson(requests, {
                         html: mockXBlockEditorHtml,
                         resources: []

cms/static/js/views/xblock.js

@@ -17,6 +17,7 @@ define(["jquery", "underscore", "js/views/baseview", "xblock/runtime.v1"],
                 return $.ajax({
                     url: decodeURIComponent(xblockUrl) + "/" + view,
                     type: 'GET',
+                    cache: false,
                     headers: { Accept: 'application/json' },
                     success: function(fragment) {
                         self.handleXBlockFragment(fragment, options);