Flexbox not working in Safari

Question

The layout I am creating isn't working in Safari though it works perfectly in Chrome. I have a feeling it has something to do with the .wrapper or the .frame but I have tried setting the Flex Shrink value to 0 to no avail.

JSFiddle

.frame {
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    height: 100vh;
    position: relative;
    overflow: hidden;
    -webkit-flex: 1 1 auto;
    -ms-flex: 1 1 auto;
    flex: 1 1 auto;
    -webkit-flex-wrap: nowrap;
    -ms-flex-wrap: nowrap;
    flex-wrap: nowrap;  
    -webkit-flex-flow: column nowrap;
    -ms-flex-flow: column nowrap;
    flex-flow: column nowrap;
    -webkit-align-items: stretch;
    -ms-flex-align: stretch;
    align-items: stretch;
    -webkit-justify-content: flex-start;
    -ms-flex-pack: start;
    justify-content: flex-start;
    -webkit-order: 0;
    -ms-flex-order: 0;
    order: 0;
}

.wrapper {
    -webkit-flex: 1 0 auto !important;
    -ms-flex: 1 0 auto !important;
    flex: 1 0 auto !important;
    -webkit-flex-wrap: nowrap !important;
    -ms-flex-wrap: nowrap !important;
    flex-wrap: nowrap !important;
}

.row, 
.wrapper {
    box-sizing: border-box;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-flex: 0 0 auto;
    -ms-flex: 0 0 auto;
    flex: 0 0 auto;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
    -webkit-flex-direction: row;
    -ms-flex-direction: row;
    flex-direction: row;
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
}

I also feel there may be a better way of using Flexbox without the need for the wrapper but can't get my head around it.

Any help would be really appreciated!

Answer 1

The issue is on your .content class. Specifically, in this section of code.

.content {
    display: block;
  flex: 1 1 auto;
  background: #ddd;
  height: auto;
  overflow-y: auto;
  overflow-x: hidden;
  padding-right:.5em;
  padding-bottom:.5em;
}

Safari still requires the -webkit- prefix to use flexbox. So you will need to add the -webkit- prefix to you flex property.

Example (JSFiddle):

.content {
    display: block;
  -webkit-flex: 1 1 auto;
  -ms-flex: 1 1 auto;
  flex: 1 1 auto;
  background: #ddd;
  height: auto;
  overflow-y: auto;
  overflow-x: hidden;
  padding-right:.5em;
  padding-bottom:.5em;
}