[wp-trac] [WordPress Trac] #27601: Add a warning when $editor_id in TinyMCE is invalid

[WordPress Trac]

#27601: Add a warning when $editor_id in TinyMCE is invalid
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 Reporter:  toscho       |      Owner:
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  Awaiting Review
Component:  Editor       |    Version:  trunk
 Severity:  normal       |   Keywords:
  Focuses:               |
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 When the second argument for `wp_editor()`, the `$editor_id`, is invalid,
 the new TinyMCE will render its content as white text on white background,
 and the markup is plain text. See #26778.

 This change is not backwards-compatible to 3.8, so we should send an
 explanation to the developer.

 That could be either a JavaScript warning per `console.warn()` (might not
 work in all browsers) or a PHP notice.

 The text could be like this:

 > Warning: Invalid value for `$editor_id`. Use alphanumeric characters,
 underscores and minus only, the first character must not be a number. To
 set a different `name` attribute, use the `textarea_name` parameter in the
 editor settings array.

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Ticket URL: <https://core.trac.wordpress.org/ticket/27601>
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