vimeo login stuck on loading

[Eran Uzan]

When adding a Vimeo account to the system the login screen is stuck on "Loading..."

To repeduce :
- Go to Apps scope
- Click on "System Settings"
- Click on "Accounts"
- Click on "Add account..."
- Click on "vimeo"

Result :
 1. A new screen loading screen is opened with loading animation
    playing indefinitely (or at least 5 minutes :)).
 2. Clicking on "Cancel" to exit the screen doesn't work.

Expected :
 1. Vimeo login/authentication association screen should be displayed.
 2. Clicking on "Cancel" should stop the process and go back
    to the general "Add account" screen.

Some further information :
- I'm located at israel if it`s a location based issue.
- My device is Meizu PRO 5
- Build number : OTA-11
- build description : Ubuntu 15.04 - armhf (20160524-114729)
- Device image part : 20160509-cc15395

In the syslog I get the following :

Nov 10 09:42:22 ubuntu-phablet kernel: [11221.063084] [4:online-accounts:31018] [c4] audit_printk_skb: 36 callbacks suppressed
Nov 10 09:42:22 ubuntu-phablet kernel: [11221.063114] [4:online-accounts:31018] [c4] type=1400 audit(1478763742.361:1366): apparmor="DENIED" operation="mknod" profile="com.ubuntu.scopes.vimeo_accounts_1.0.2-93" name="/home/phablet/.cache/fontconfig/8801497958630a81b71ace7c5f9b32a8-le32d8.cache-6.TMP-BQduNX" pid=31018 comm="online-accounts" requested_mask="c" denied_mask="c" fsuid=32011 ouid=32011
Nov 10 09:42:22 ubuntu-phablet kernel: [11221.063456] [4:online-accounts:31018] [c4] type=1400 audit(1478763742.371:1367): apparmor="DENIED" operation="open" profile="com.ubuntu.scopes.vimeo_accounts_1.0.2-93" name="/home/phablet/.cache/fontconfig/385c0604a188198f04d133e54aba7fe7-le32d8.cache-6" pid=31018 comm="online-accounts" requested_mask="r" denied_mask="r" fsuid=32011 ouid=0
...