The output is escaped, so it will not display html, try this :
just save the value of the src attribute
<iframe src="<?php echo esc_attr__( get_post_meta( get_the_ID(), 'name', true ) ); ?>" width="670" height="500">
The output is escaped, so it will not display html, try this :
just save the value of the src attribute
<iframe src="<?php echo esc_attr__( get_post_meta( get_the_ID(), 'name', true ) ); ?>" width="670" height="500">