Issue title: shopify feature does not work properly in app
 Issue body: Has anyone successfully added the shopify feature on SiberianCMS

 PE and had it work correctly?

I added the shopify feature to one of my apps and it did not open properly on the app rather it displays in a small frame below the app menu, which is not even noticeable. I accidentally noticed that that’s where it displays.

Has someone ever encountered this bug?

Siberian CMS Team please look into this bug and fix. So that shopify store owners can use the platform to create a mobile app for their store.

![screenshot_2017-08-11-16-39-03](https://user-images.githubusercontent.com/30932682/29222785-df42d06c-7ebb-11e7-9fac-c774bd2fe29a.png)

 Comments: 
 Comment 0: Shopify `feature` is only an alias for `Link` feature, so can you try with link?
 Comment 1: I noticed that the Shopify feature is only an alias for Link. So I tried the Link feature and it performs the same way. See the app below that has the shopify feature.

https://apps.mobileappforeveryone.com/5987c4a93e87d/
 Comment 2: Seems the webview doesn't handle very well the Shopify css, you must force the use of chrome in this case, we can't do anything on this side.
 Comment 3: Thanks for your response. But just to be clear, is this an issue with Siberian CMS at the moment?
 Comment 4: No it's not an issue, it's just that the webview doesn't seem to like shopify.
 Comment 5: so any solution for that issue so far, missing shopify is catastrophic disadvantage 
{'source': 'GithubIssues', 'repo_name_with_owner': 'Xtraball/SiberianCMS', 'issue_id': 249688102, 'repo_stars': 115.0}