[wp-trac] [WordPress Trac] #34290: Not possible to have a percent symbol contained in the default value of a theme_mod

[WordPress Trac]

#34290: Not possible to have a percent symbol contained in the default value of a
theme_mod
--------------------------+-----------------------------------------
 Reporter:  kuus          |       Owner:  (none)
     Type:  defect (bug)  |      Status:  reopened
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Customize     |     Version:  4.4
 Severity:  normal        |  Resolution:
 Keywords:  needs-patch   |     Focuses:  javascript, administration
--------------------------+-----------------------------------------

Comment (by daviedR):

 Facing the same issue here, my case is:

 `get_theme_mod( 'mykey', '100%' );`

 when `mykey` has no value, the function would return `'100'` instead of
 `'100%'`. The `'%'` character is stripped out because of the `sprintf`
 function.

 In the function description:

   If the modification name does not exist, then the $default will be
 passed through sprintf() PHP function with the first string the template
 directory URI and the second string the stylesheet directory URI.

 Is there any reason why WordPress use sprintf to convert first and second
 `%s` into template and stylesheet directory URI?

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Ticket URL: <https://core.trac.wordpress.org/ticket/34290#comment:14>
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