fetching Goodread book data from API using ISBN with cross domain Access-Control-Allow-Origin CORP solution

goodread_isbn.js

<script src="https://code.jquery.com/jquery-1.10.2.js"></script>
<script type="text/javascript">
  
  goodRead('9382749004'); // not found
  goodRead('0441172717'); // single author
  goodRead('0552137030'); // multiple author
  
  function goodRead(isbn) {

		var key = "<your key>"; // replace with your key

		var url = "https://www.goodreads.com/book/isbn/" + isbn + "?key=" + key;

		$.get("http://query.yahooapis.com/v1/public/yql",
		    {
		        q: "select * from xml where url=\""+url+"\"",
		        format: "json"
		    },
		    function(json){

		    	if(json.query.results.error === "Page not found") {
		    		console.log("no book found");
		    	} else {

		    		var book = json.query.results.GoodreadsResponse.book;

			        var title           = book.title;
			        var isbn10          = book.isbn;
			        var isbn13          = book.isbn13;
			        var country_code    = book.country_code;
			        var image_url       = book.image_url;
			        var small_image_url = book.small_image_url;
			        var publisher       = book.publisher;
			        var description     = book.description;

			        var all_authors = book.authors.author;


			        
			        if(book.authors.author.length===undefined) { //single author

			        	var authors = [all_authors.name];

			        } else { // multiple authors

			        	var author_count = all_authors.length

			        	var authors = [];

			        	for( i=0 ; i<author_count ; i++) {
			        		authors.push(all_authors[i].name)
			        	}

			        }

			        var book_object = {
							"title"           : title,
							"isbn10"          : isbn10,
							"isbn13"          : isbn13,
							"country_code"    : country_code,
							"image_url"       : image_url,
							"small_image_url" : small_image_url,
							"publisher"       : publisher,
							"description"     : description,
							"authors"         : authors,
						  }
			        console.log(book_object);

		    	}
		    }
		);
	}

</script>