The recommendationrestclient.js uses the synchronous XMLHttpRequest, which results in the following warning shown in the browser's console on frontoffice pages that use the displaying of the recommendations:
Steps to reproduce
- Set up the fresh installation of eZPlatform with eZ Recommendation using the install steps: https://github.com/ezsystems/EzSystemsRecommendationBundle#step-1-installation.
- Configure the displaying of recommendations using the following steps: https://github.com/ezsystems/EzSystemsRecommendationBundle#displaying
- Open your browser's console. In the frontoffice, go to the page that has recommendations displaying configured. In your browser's console, the above warning will be displayed.