:warning: If your issue is about an error during fetching a link, please read: http://doc.wallabag.org/en/user/errors_during_fetching.html#how-can-i-help-to-fix-that

### Issue details

Please provide issue details here.
Remember, this is _not_ a place to ask questions. For that, go to https://community.wallabag.org/ (forum) or http://gitter.im/wallabag/wallabag (chat).

### Environment

* wallabag version (or git revision) that exhibits the issue:
* How did you install wallabag? Via `git clone` or by downloading the package?
* Last wallabag version that did not exhibit the issue (if applicable):
* php version:
* OS:
* type of hosting (shared or dedicated):
* which storage system you choose at install (SQLite, MySQL/MariaDB or PostgreSQL):

### Steps to reproduce/test case

Please provide necessary steps for reproduction of this issue, or better the
reduced test case (without any external dependencies, if possible).
