Fix #118 Store link is missing rel="noopener"

Author: ain

src/smartbanner.js

@@ -126,7 +126,7 @@ export default class SmartBanner {
           <div class="smartbanner__info__price">${this.options.price}${this.priceSuffix}</div>
         </div>
       </div>
-      <a href="${this.buttonUrl}" target="_blank" class="smartbanner__button"><span class="smartbanner__button__label">${this.options.button}</span></a>
+      <a href="${this.buttonUrl}" target="_blank" class="smartbanner__button" rel="noopener"><span class="smartbanner__button__label">${this.options.button}</span></a>
     </div>`;
   }
 

test/spec/smartbanner_spec.js

@@ -126,7 +126,7 @@ describe('SmartBanner', function() {
           <div class="smartbanner__info__price">FREE - On the App Store</div>
         </div>
       </div>
-      <a href="https://itunes.apple.com/us/genre/ios/id36?mt=8" target="_blank" class="smartbanner__button"><span class="smartbanner__button__label">View</span></a>
+      <a href="https://itunes.apple.com/us/genre/ios/id36?mt=8" target="_blank" class="smartbanner__button" rel="noopener"><span class="smartbanner__button__label">View</span></a>
     </div>`;
 
   const ANDROID_BODY = `<div class="smartbanner smartbanner--android js_smartbanner">
@@ -139,7 +139,7 @@ describe('SmartBanner', function() {
           <div class="smartbanner__info__price">FREE - In Google Play</div>
         </div>
       </div>
-      <a href="https://play.google.com/store" target="_blank" class="smartbanner__button"><span class="smartbanner__button__label">View</span></a>
+      <a href="https://play.google.com/store" target="_blank" class="smartbanner__button" rel="noopener"><span class="smartbanner__button__label">View</span></a>
     </div>`;
 
   const ANDROID_CUSTOM_DESIGN_BODY = `<div class="smartbanner smartbanner--custom-design js_smartbanner">
@@ -152,7 +152,7 @@ describe('SmartBanner', function() {
           <div class="smartbanner__info__price">FREE - In Google Play</div>
         </div>
       </div>
-      <a href="https://play.google.com/store" target="_blank" class="smartbanner__button"><span class="smartbanner__button__label">View</span></a>
+      <a href="https://play.google.com/store" target="_blank" class="smartbanner__button" rel="noopener"><span class="smartbanner__button__label">View</span></a>
     </div>`;
 
   const USER_AGENT_IPHONE_IOS8 = 'Mozilla/5.0 (iPhone; CPU iPhone OS 8_0_2 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12A405 Safari/600.1.4';