[wp-trac] [WordPress Trac] #35824: Inline svg icons are not displaying when the page is viewed from Customizer's iframe

[WordPress Trac]

#35824: Inline svg icons are not displaying when the page is viewed from
Customizer's iframe
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 Reporter:  johndoedoe    |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  4.6
Component:  Customize     |     Version:  4.4.2
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
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Comment (by aut0poietic):

 @bentleykfrog Thanks for the suggestion. Unfortunately, my symbol-defs svg
 file uses similar technique to yours but without the visibility:hidden.

 I'm seeing the behavior regardless of whether I'm adding the SVG as a
 symbol and using xlink or inserting the direct SVG markup in the page. The
 example SVG I provided above
 (https://gist.github.com/aut0poietic/f95e3c53bfba77b58984) can be directly
 inserted into a theme as markup (not as a symbol) and the behavior
 persists: Normal site viewing the SVG works perfectly, but the SVG
 completely dissappears (not just the gradient and filters) in customizer
 view.

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Ticket URL: <https://core.trac.wordpress.org/ticket/35824#comment:5>
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