Splashscreen not working on any iOS browser

[kebi]

Hello guys,

I created a splashscreen for my tiddlywiki with the following style (I used Autoprefix for the webkit https://autoprefixer.github.io)

loader {
  -webkit-animation: spin 1s linear infinite;
  animation: spin 1s linear infinite;
}

@-webkit-keyframes spin {
  0% { -webkit-transform: rotate(0deg); transform: rotate(0deg); }
  100% { -webkit-transform: rotate(360deg); transform: rotate(360deg); }
}

@keyframes spin {
  0% { -webkit-transform: rotate(0deg); transform: rotate(0deg); }
  100% { -webkit-transform: rotate(360deg); transform: rotate(360deg); }
}

The animation doesn't work only on iOS devices (every browser), but it loads just fine on Android.

I think there is a problem with the webkit not loading properly, does anybody why this happens or how to fix this?