[wp-trac] [WordPress Trac] #38722: Twenty Seventeen: Customizer preview display issues in IE9

[WordPress Trac]

#38722: Twenty Seventeen: Customizer preview display issues in IE9
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 Reporter:  laurelfulford  |      Owner:
     Type:  defect (bug)   |     Status:  new
 Priority:  normal         |  Milestone:  Awaiting Review
Component:  Bundled Theme  |    Version:
 Severity:  normal         |   Keywords:
  Focuses:                 |
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 When previewing the static front page of the theme using IE9, the header
 image displays very large and zoomed in:

 [[Image(https://cldup.com/ZgYr5OygHJ.thumb.jpg)]]


 This is an issue with how IE9 understands `vh` when inside of an `iframe`.
 Normally IE9 will understand vh as the vertical height relative to the
 viewport, but in an iframe, IE9 thinks the vertical height is relative to
 the size of the whole page.

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Ticket URL: <https://core.trac.wordpress.org/ticket/38722>
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