stop CloudFlare Rockscript messing up WP Flexible Map plugin!

flxmap-no-rocketscript.php

<?php
/*
Plugin Name: Flxmap No Rocketscript
Plugin URI: https://gist.github.com/webaware/8949605
Description: stop CloudFlare Rockscript messing up the map plugin!
Version: 3
Author: WebAware
Author URI: http://webaware.com.au/

@ref: http://wordpress.org/support/topic/map-wont-appear
@ref: http://stackoverflow.com/a/10611827/911083
@ref: https://support.cloudflare.com/hc/en-us/articles/200169436
*/

/**
* output a script tag that won't be replaced by Rocketscript
* @param string $handle
*/
function flxmap_no_rocketscript($handle) {
    global $wp_scripts;

    $script = $wp_scripts->query($handle);
    $src = $script->src;
    if ( !empty($script->ver) ) {
        $src = add_query_arg('ver', $script->ver, $src);
    }
    $src = esc_url( apply_filters( 'script_loader_src', $src, $handle ) );

    echo "<script data-cfasync='false' type='text/javascript' src='$src'></script>\n";
}

/**
* intercept call to print footer scripts,
* replace Google Maps API and Flexible Map script
*/
add_action('wp_print_footer_scripts', function() {
    if (wp_script_is('flxmap')) {
        wp_dequeue_script('flxmap');
        wp_dequeue_script('google-maps');

        flxmap_no_rocketscript('google-maps');
        flxmap_no_rocketscript('flxmap');
    }
}, 1);

/**
* add data-cfasync attribute to Flexible Map script tag
* @param string $html
* @return string
*/
add_filter('flexmap_shortcode_html', function($html) {
    $html = str_replace('<script', '<script data-cfasync="false"', $html);
    return $html;
});