[wp-trac] [WordPress Trac] #34254: Bug when using the HTML Tag "<progress></progress>" (only when switching to Visual Editor)

[WordPress Trac]

#34254: Bug when using the HTML Tag "<progress></progress>" (only when switching to
Visual Editor)
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 Reporter:  Sprax2013     |       Owner:  (none)
     Type:  defect (bug)  |      Status:  closed
 Priority:  normal        |   Milestone:
Component:  Editor        |     Version:  4.3.1
 Severity:  normal        |  Resolution:  wontfix
 Keywords:                |     Focuses:
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Changes (by sabernhardt):

 * status:  new => closed
 * resolution:   => wontfix


Comment:

 The TinyMCE editor needs to be extended to support the `progress` tag. One
 way is with the `tiny_mce_before_init` filter (in a custom plugin).

 A more user-friendly way is with the [https://wordpress.org/plugins
 /advanced-tinymce-configuration/ Advanced TinyMCE Configuration plugin].
 On the settings screen, you could add `,progress[id|max|value]` to the
 `extended_valid_elements` setting to support the tag and a few of its
 typical attributes.

 [[Image(https://live.staticflickr.com/65535/50958823576_73eb27dc76_h.jpg)]]

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Ticket URL: <https://core.trac.wordpress.org/ticket/34254#comment:2>
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