Ion content Iframe will not scroll horizontally

I’m using the following code and it’s working great EXCEPT for the fact that the page will not horizontally scroll. As I understand it the scroll and overflow elements of the ion-content should handle this? I’ve also tried the various scrolling=auto etc. on the iframe element. Any ideas?

FYI: I’ve removed the < where necessary to have the code show up.

ion-content padding=“true” class=“has-header” scroll=“true” overflow-scroll=“true”>

iframe data-tap-disabled=“true” style=“
display: block; /* iframes are inline by default /
border: none; /
Reset default border /
height: 100vh; /
Viewport-relative units */
width: 100vw;
” src=“” width=“100%” height=“100%” target="_parent">