[wp-trac] [WordPress Trac] #31517: Customizer: show a notice after attempting to navigate to external links in live previews

[WordPress Trac]

#31517: Customizer: show a notice after attempting to navigate to external links in
live previews
----------------------------+-----------------------------
 Reporter:  designsimply    |      Owner:
     Type:  enhancement     |     Status:  new
 Priority:  normal          |  Milestone:  Awaiting Review
Component:  Customize       |    Version:
 Severity:  normal          |   Keywords:
  Focuses:  ui, javascript  |
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 The Customizer only allows you to click internal, front-end links within a
 preview to navigate to URLs you can customize:
 https://core.trac.wordpress.org/browser/trunk/src/wp-admin/js/customize-
 controls.js#L2110

 Clicking on an external link from the live preview pane fails silently. To
 help avoid confusion, we could display a notice to alert when someone
 clicks on an external link in a live preview:

 > ⚠ You can only preview internal, front-end links in the customizer.

 Here is a past description of how a customizer notice could work from
 @westonruter: https://core.trac.wordpress.org/ticket/30677#comment:7
 (different use case, but the part about how the alert might work is
 relevant)

 #29098 provides a general mechanism for sending back error codes/messages.

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Ticket URL: <https://core.trac.wordpress.org/ticket/31517>
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