wp_customize_support_script ( No parameters )
- Introduced in WordPress: 3.4.0
- Deprecated in WordPress: —
Prints a script to check whether or not the Customizer is supported,
and apply either the no-customize-support or customize-support class
to the body.
This function MUST be called inside the body tag.
Ideally, call this function immediately after the body tag is opened.
This prevents a flash of unstyled content.
It is also recommended that you add the "no-customize-support" class
to the body tag by default.