icon-loading-dark visible when viewing small images

[jaller94]

Bug report

Steps to reproduce

1. Create an image with width or height less than 32px.
2. Upload it to your Nextcloud.
3. View the image in the gallery.

Expected behaviour

Once the image is loaded, the icon-loading-dark should disappear.

Actual behaviour

Even after the image is loaded, the icon-loading-dark is still visible and rotating in the background.

Server configuration

Operating system: Linux 2.6.32

Web server: Apache

Database: mariadb 10.0.25

PHP version: 7.0.8

Nextcloud version: 10.0.0

Gallery version: 15.0.0

Updated from an older Nextcloud/ownCloud or fresh install: Updated from 9.0.53

Where did you install Nextcloud from: nextcloud.com

Client configuration

Browser: Firefox 45.1.1 / IE 11.0

Operating system: Windows 7

[oparoz]

Thanks I did notice it, but apparently had not files a bug.
It should be easy to fix for anybody who has worked with Javascript before as we should just hide the spinner once an image is shown.