Missing login fields on iPad

On latest version 18.0 no login fields are shown on iPad (Safari). Multiple iPad and Safari versions.

[Error] ReferenceError: Can’t find variable: Intl — login.js:305:68510
Be (login.js:305:11650)
Ue (login.js:305:11563)
$e (login.js:305:11213)
(anonymous function) (login.js:305:28786)
(anonymous function) (login.js:305:28818)
vn (login.js:305:29027)
_init (login.js:305:32773)
o (login.js:305:30447)
(anonymous function) (login.js:305:19351)
init (login.js:305:19355)
(anonymous function) (login.js:305:52527)
d (login.js:305:52803)
p (login.js:305:53395)
d (login.js:305:52918)
(anonymous function) (login.js:305:56940)
_update (login.js:305:34403)
r (login.js:305:64413)
get (login.js:305:26657)
pn (login.js:305:26574)
(anonymous function) (login.js:305:64436)
$mount (login.js:305:64577)
init (login.js:305:19369)
(anonymous function) (login.js:305:52527)
d (login.js:305:52803)
p (login.js:305:53395)
d (login.js:305:52918)
(anonymous function) (login.js:305:57208)
_update (login.js:305:34403)
r (login.js:305:64413)
get (login.js:305:26657)
pn (login.js:305:26574)
(anonymous function) (login.js:305:64436)
$mount (login.js:305:64577)
(anonymous function) (login.js:310:17725)
n (login.js:1:115)
(anonymous function) (login.js:1:904)
Global Code (login.js:1:915)
[Error] TypeError: undefined is not an object (evaluating ‘e.OC.generateUrl’) — login.js:310:4276
Be (login.js:305:11650)
Ue (login.js:305:11563)
$e (login.js:305:11213)
_render (login.js:305:35388)
r (login.js:305:64423)
get (login.js:305:26657)
pn (login.js:305:26574)
(anonymous function) (login.js:305:64436)
$mount (login.js:305:64577)
init (login.js:305:19369)
(anonymous function) (login.js:305:52527)
d (login.js:305:52803)
p (login.js:305:53395)
d (login.js:305:52918)
(anonymous function) (login.js:305:56940)
_update (login.js:305:34403)
r (login.js:305:64413)
get (login.js:305:26657)
pn (login.js:305:26574)
(anonymous function) (login.js:305:64436)
$mount (login.js:305:64577)
init (login.js:305:19369)
(anonymous function) (login.js:305:52527)
d (login.js:305:52803)
p (login.js:305:53395)
d (login.js:305:52918)
(anonymous function) (login.js:305:57208)
_update (login.js:305:34403)
r (login.js:305:64413)
get (login.js:305:26657)
pn (login.js:305:26574)
(anonymous function) (login.js:305:64436)
$mount (login.js:305:64577)
(anonymous function) (login.js:310:17725)
n (login.js:1:115)
(anonymous function) (login.js:1:904)
Global Code (login.js:1:915)
[Error] TypeError: undefined is not an object (evaluating ‘this.$refs.user.focus’) — login.js:310:3832
Be (login.js:305:11650)
Ue (login.js:305:11563)
$e (login.js:305:11213)
ze (login.js:305:11415)
tn (login.js:305:25224)
insert (login.js:305:20229)
T (login.js:305:56200)
(anonymous function) (login.js:305:57553)
_update (login.js:305:34403)
r (login.js:305:64413)
get (login.js:305:26657)
pn (login.js:305:26574)
(anonymous function) (login.js:305:64436)
$mount (login.js:305:64577)
(anonymous function) (login.js:310:17725)
n (login.js:1:115)
(anonymous function) (login.js:1:904)
Global Code (login.js:1:915)

https://caniuse.com/#feat=internationalization

Safari 9 on iOS 9.3 on an Apple iPad.

Incompatible! Case closed.