We have an issue where the Twitter embedded timeline on our site is expanding beyond the 300px width we have set for it. This is only happening on iOS mobile devices in portrait mode - not in landscape mode.
… notice how the widget expands beyond the edge of the page and has the effect of shrinking the remainder of the page.
It doesn’t happen on Android devices, nor on desktop or tablets.
My website users have only reported this as happening in the past few days.