diff --git a/src/core/siteaddons/components/addon-content/addon-content.html b/src/core/siteaddons/components/addon-content/addon-content.html
index 6eb252ed4..a22885173 100644
--- a/src/core/siteaddons/components/addon-content/addon-content.html
+++ b/src/core/siteaddons/components/addon-content/addon-content.html
@@ -1,3 +1,3 @@
 <core-loading [hideUntil]="dataLoaded">
-    <core-compile-html [text]="content" [javascript]="javascript" [jsData]="bootstrapResult"></core-compile-html>
+    <core-compile-html [text]="content" [javascript]="javascript" [jsData]="jsData"></core-compile-html>
 </core-loading>
diff --git a/src/core/siteaddons/components/addon-content/addon-content.ts b/src/core/siteaddons/components/addon-content/addon-content.ts
index 32db323e0..557ba1258 100644
--- a/src/core/siteaddons/components/addon-content/addon-content.ts
+++ b/src/core/siteaddons/components/addon-content/addon-content.ts
@@ -28,7 +28,7 @@ export class CoreSiteAddonsAddonContentComponent implements OnInit {
     @Input() component: string;
     @Input() method: string;
     @Input() args: any;
-    @Input() bootstrapResult: any; // Result of the bootstrap JS of the handler.
+    @Input() bootstrapResult: any; // Result of the bootstrap WS call of the handler.
     @Output() onContentLoaded?: EventEmitter<boolean>; // Emits an event when the content is loaded.
     @Output() onLoadingContent?: EventEmitter<boolean>; // Emits an event when starts to load the content.
 
@@ -37,6 +37,7 @@ export class CoreSiteAddonsAddonContentComponent implements OnInit {
     otherData: any; // Other data of the content.
     dataLoaded: boolean;
     invalidateObservable: Subject<void>; // An observable to notify observers when to invalidate data.
+    jsData: any; // Data to pass to the component.
 
     constructor(protected domUtils: CoreDomUtilsProvider, protected siteAddonsProvider: CoreSiteAddonsProvider) {
         this.onContentLoaded = new EventEmitter();
@@ -61,9 +62,10 @@ export class CoreSiteAddonsAddonContentComponent implements OnInit {
         this.onLoadingContent.emit(refresh);
 
         return this.siteAddonsProvider.getContent(this.component, this.method, this.args).then((result) => {
-            this.content = result.html;
+            this.content = result.templates.length ? result.templates[0].html : ''; // Load first template.
             this.javascript = result.javascript;
             this.otherData = result.otherdata;
+            this.jsData = this.siteAddonsProvider.createDataForJS(this.bootstrapResult, result);
 
             this.onContentLoaded.emit(refresh);
         }).catch((error) => {
diff --git a/src/core/siteaddons/providers/helper.ts b/src/core/siteaddons/providers/helper.ts
index d51bfa002..c8e0b6c18 100644
--- a/src/core/siteaddons/providers/helper.ts
+++ b/src/core/siteaddons/providers/helper.ts
@@ -64,10 +64,10 @@ export class CoreSiteAddonsHelperProvider {
      * @param {any} addon Data of the addon.
      * @param {string} handlerName Name of the handler in the addon.
      * @param {any} handlerSchema Data about the handler.
-     * @return {Promise<{restrict?: any, jsResult?: any}>} Promise resolved when done. It returns the "restrict" of the handler and
-     *                                                     the result of the javascript execution (if any).
+     * @return {Promise<any>} Promise resolved when done. It returns the results of the getContent call and the data returned by
+     *                        the bootstrap JS (if any).
      */
-    protected bootstrapHandler(addon: any, handlerName: string, handlerSchema: any): Promise<{restrict?: any, jsResult?: any}> {
+    protected bootstrapHandler(addon: any, handlerName: string, handlerSchema: any): Promise<any> {
         if (!handlerSchema.bootstrap) {
             return Promise.resolve({});
         }
@@ -76,24 +76,25 @@ export class CoreSiteAddonsHelperProvider {
             preSets = {getFromCache: false}; // Try to ignore cache.
 
         return this.siteAddonsProvider.getContent(addon.component, handlerSchema.bootstrap, {}, preSets).then((result) => {
-            const data = {
-                restrict: result.restrict,
-                jsResult: undefined
-            };
-
             if (!result.javascript || this.sitesProvider.getCurrentSiteId() != siteId) {
                 // No javascript or site has changed, stop.
-                return data;
+                return result;
             }
 
             // Create a "fake" instance to hold all the libraries.
             const instance = {};
             this.compileProvider.injectLibraries(instance);
 
-            // Now execute the javascript using this instance.
-            data.jsResult = this.compileProvider.executeJavascript(instance, result.javascript);
+            // Add some data of the WS call result.
+            const jsData = this.siteAddonsProvider.createDataForJS(result);
+            for (const name in jsData) {
+                instance[name] = jsData[name];
+            }
 
-            return data;
+            // Now execute the javascript using this instance.
+            result.jsResult = this.compileProvider.executeJavascript(instance, result.javascript);
+
+            return result;
         });
     }
 
@@ -270,26 +271,23 @@ export class CoreSiteAddonsHelperProvider {
 
             switch (handlerSchema.delegate) {
                 case 'CoreMainMenuDelegate':
-                    uniqueName = this.registerMainMenuHandler(addon, handlerName, handlerSchema, result.jsResult, result.restrict);
+                    uniqueName = this.registerMainMenuHandler(addon, handlerName, handlerSchema, result);
                     break;
 
                 case 'CoreCourseModuleDelegate':
-                    uniqueName = this.registerModuleHandler(addon, handlerName, handlerSchema, result.jsResult, result.restrict);
+                    uniqueName = this.registerModuleHandler(addon, handlerName, handlerSchema, result);
                     break;
 
                 case 'CoreUserDelegate':
-                    uniqueName = this.registerUserProfileHandler(addon, handlerName, handlerSchema, result.jsResult,
-                            result.restrict);
+                    uniqueName = this.registerUserProfileHandler(addon, handlerName, handlerSchema, result);
                     break;
 
                 case 'CoreCourseOptionsDelegate':
-                    uniqueName = this.registerCourseOptionHandler(addon, handlerName, handlerSchema, result.jsResult,
-                            result.restrict);
+                    uniqueName = this.registerCourseOptionHandler(addon, handlerName, handlerSchema, result);
                     break;
 
                 case 'CoreCourseFormatDelegate':
-                    uniqueName = this.registerCourseFormatHandler(addon, handlerName, handlerSchema, result.jsResult,
-                            result.restrict);
+                    uniqueName = this.registerCourseFormatHandler(addon, handlerName, handlerSchema, result);
                     break;
 
                 default:
@@ -314,12 +312,10 @@ export class CoreSiteAddonsHelperProvider {
      * @param {any} addon Data of the addon.
      * @param {string} handlerName Name of the handler in the addon.
      * @param {any} handlerSchema Data about the handler.
-     * @param {any} [bootstrapResult] Result of executing the bootstrap JS.
-     * @param {any} [restrict] List of users and courses the handler is restricted to.
+     * @param {any} bootstrapResult Result of the bootstrap WS call.
      * @return {string} A string to identify the handler.
      */
-    protected registerCourseFormatHandler(addon: any, handlerName: string, handlerSchema: any, bootstrapResult?: any,
-            restrict?: any): string {
+    protected registerCourseFormatHandler(addon: any, handlerName: string, handlerSchema: any, bootstrapResult: any): string {
         if (!handlerSchema) {
             // Required data not provided, stop.
             return;
@@ -359,12 +355,10 @@ export class CoreSiteAddonsHelperProvider {
      * @param {any} addon Data of the addon.
      * @param {string} handlerName Name of the handler in the addon.
      * @param {any} handlerSchema Data about the handler.
-     * @param {any} [bootstrapResult] Result of executing the bootstrap JS.
-     * @param {any} [restrict] List of users and courses the handler is restricted to.
+     * @param {any} bootstrapResult Result of the bootstrap WS call.
      * @return {string} A string to identify the handler.
      */
-    protected registerCourseOptionHandler(addon: any, handlerName: string, handlerSchema: any, bootstrapResult?: any,
-            restrict?: any): string {
+    protected registerCourseOptionHandler(addon: any, handlerName: string, handlerSchema: any, bootstrapResult: any): string {
         if (!handlerSchema || !handlerSchema.displaydata) {
             // Required data not provided, stop.
             return;
@@ -381,7 +375,7 @@ export class CoreSiteAddonsHelperProvider {
             priority: handlerSchema.priority,
             isEnabledForCourse: (courseId: number, accessData: any, navOptions?: any, admOptions?: any)
                     : boolean | Promise<boolean> => {
-                return this.isHandlerEnabledForCourse(courseId, handlerSchema.restricttoenrolledcourses, restrict);
+                return this.isHandlerEnabledForCourse(courseId, handlerSchema.restricttoenrolledcourses, bootstrapResult.restrict);
             },
             getDisplayData: (courseId: number): CoreCourseOptionsHandlerData => {
                 return {
@@ -413,12 +407,10 @@ export class CoreSiteAddonsHelperProvider {
      * @param {any} addon Data of the addon.
      * @param {string} handlerName Name of the handler in the addon.
      * @param {any} handlerSchema Data about the handler.
-     * @param {any} [bootstrapResult] Result of executing the bootstrap JS.
-     * @param {any} [restrict] List of users and courses the handler is restricted to.
+     * @param {any} bootstrapResult Result of the bootstrap WS call.
      * @return {string} A string to identify the handler.
      */
-    protected registerMainMenuHandler(addon: any, handlerName: string, handlerSchema: any, bootstrapResult?: any, restrict?: any)
-            : string {
+    protected registerMainMenuHandler(addon: any, handlerName: string, handlerSchema: any, bootstrapResult: any): string {
         if (!handlerSchema || !handlerSchema.displaydata) {
             // Required data not provided, stop.
             return;
@@ -460,12 +452,10 @@ export class CoreSiteAddonsHelperProvider {
      * @param {any} addon Data of the addon.
      * @param {string} handlerName Name of the handler in the addon.
      * @param {any} handlerSchema Data about the handler.
-     * @param {any} [bootstrapResult] Result of executing the bootstrap JS.
-     * @param {any} [restrict] List of users and courses the handler is restricted to.
+     * @param {any} bootstrapResult Result of the bootstrap WS call.
      * @return {string} A string to identify the handler.
      */
-    protected registerModuleHandler(addon: any, handlerName: string, handlerSchema: any, bootstrapResult?: any, restrict?: any)
-            : string {
+    protected registerModuleHandler(addon: any, handlerName: string, handlerSchema: any, bootstrapResult: any): string {
         if (!handlerSchema || !handlerSchema.displaydata) {
             // Required data not provided, stop.
             return;
@@ -520,12 +510,10 @@ export class CoreSiteAddonsHelperProvider {
      * @param {any} addon Data of the addon.
      * @param {string} handlerName Name of the handler in the addon.
      * @param {any} handlerSchema Data about the handler.
-     * @param {any} [bootstrapResult] Result of executing the bootstrap JS.
-     * @param {any} [restrict] List of users and courses the handler is restricted to.
+     * @param {any} bootstrapResult Result of the bootstrap WS call.
      * @return {string} A string to identify the handler.
      */
-    protected registerUserProfileHandler(addon: any, handlerName: string, handlerSchema: any, bootstrapResult?: any, restrict?: any)
-            : string {
+    protected registerUserProfileHandler(addon: any, handlerName: string, handlerSchema: any, bootstrapResult: any): string {
         if (!handlerSchema || !handlerSchema.displaydata) {
             // Required data not provided, stop.
             return;
@@ -543,13 +531,14 @@ export class CoreSiteAddonsHelperProvider {
             type: handlerSchema.type,
             isEnabledForUser: (user: any, courseId: number, navOptions?: any, admOptions?: any): boolean | Promise<boolean> => {
                 // First check if it's enabled for the user.
-                const enabledForUser = this.isHandlerEnabledForUser(user.id, handlerSchema.restricttocurrentuser, restrict);
+                const enabledForUser = this.isHandlerEnabledForUser(user.id, handlerSchema.restricttocurrentuser,
+                        bootstrapResult.restrict);
                 if (!enabledForUser) {
                     return false;
                 }
 
                 // Enabled for user, check if it's enabled for the course.
-                return this.isHandlerEnabledForCourse(courseId, handlerSchema.restricttoenrolledcourses, restrict);
+                return this.isHandlerEnabledForCourse(courseId, handlerSchema.restricttoenrolledcourses, bootstrapResult.restrict);
             },
             getDisplayData: (user: any, courseId: number): CoreUserProfileHandlerData => {
                 return {
diff --git a/src/core/siteaddons/providers/siteaddons.ts b/src/core/siteaddons/providers/siteaddons.ts
index 94fca9258..f6051d5d4 100644
--- a/src/core/siteaddons/providers/siteaddons.ts
+++ b/src/core/siteaddons/providers/siteaddons.ts
@@ -46,7 +46,7 @@ export interface CoreSiteAddonsHandler {
     handlerSchema: any;
 
     /**
-     * Result of executing the bootstrap JS.
+     * Result of the bootstrap WS call.
      * @type {any}
      */
     bootstrapResult?: any;
@@ -134,6 +134,31 @@ export class CoreSiteAddonsProvider {
         });
     }
 
+    /**
+     * Given the result of a bootstrap get_content and, optionally, the result of another get_content,
+     * build an object with the data to pass to the JS of the get_content.
+     *
+     * @param {any} bootstrapResult Result of the bootstrap WS call.
+     * @param {any} [contentResult] Result of the content WS call (if any).
+     * @return {any} An object with the data to pass to the JS.
+     */
+    createDataForJS(bootstrapResult: any, contentResult?: any): any {
+        // First of all, add the data returned by the bootstrap JS (if any).
+        const data = this.utils.clone(bootstrapResult.jsResult || {});
+
+        // Now add some data returned by the bootstrap WS call.
+        data.BOOTSTRAP_TEMPLATES = this.utils.objectToKeyValueMap(bootstrapResult.templates, 'id', 'html');
+        data.BOOTSTRAP_OTHERDATA = bootstrapResult.otherdata;
+
+        if (contentResult) {
+            // Now add the data returned by the content WS call.
+            data.CONTENT_TEMPLATES = this.utils.objectToKeyValueMap(contentResult.templates, 'id', 'html');
+            data.CONTENT_OTHERDATA = contentResult.otherdata;
+        }
+
+        return data;
+    }
+
     /**
      * Get cache key for a WS call.
      *
@@ -186,10 +211,12 @@ export class CoreSiteAddonsProvider {
             }).then((result) => {
                 if (result.otherdata) {
                     try {
-                        result.otherdata = JSON.parse(result.otherdata);
+                        result.otherdata = JSON.parse(result.otherdata) || {};
                     } catch (ex) {
                         // Ignore errors.
                     }
+                } else {
+                    result.otherdata = {};
                 }
 
                 return result;