Small error in the documentation. It says, that "local_header_top_content(): Returned data is printed at top of <head>", when in fact the returned data is printed (almost) at top of <body>.
Small error in the documentation. It says, that "local_ header_ top_content( ): Returned data is printed at top of <head>", when in fact the returned data is printed (almost) at top of <body>.