ajax - JAX-RS | Download PDF from Base64 encoded data -

folks,

i have rest controller calls service base 64 encoded string represents pdf. i'm calling rest endpoint through ajax call. want user download pdf file when click on link.

here rest controller:

@get     @path("/getinvoice/{invoiceid}.pdf")     @produces("application/pdf")     @consumes(mediatype.text_html)     public response invoice(@pathparam("invoiceid") final string invoiceid) throws shoppingcartexception, unexpectederrorfault_exception,             malformedqueryfault_exception, invalidquerylocatorfault_exception, loginfault_exception, ioexception {           base64decoder decoder = new base64decoder();         byte[] decodedbytes = decoder.decodebuffer(aservice.getinvoicebody(invoiceid));         responsebuilder response = response.ok(new bytearrayinputstream(decodedbytes));         response.header("content-disposition", "attachment; filename=test.pdf");         return response.build(); } 

the service returns base64 encoded string (representing pdf) convert byte array (after google search). want user see file download popup name 'invoiceid}.pdf' when click on link. of response returned nothing happens.

would appreciate pointers or here..

update: quick test, disabled ajax call , directly called rest endpoint . able download file. perhaps due security reasons, not achievable through ajax. also, i'd users see kind 'please wait' message while processing happens in backend. i'd appreciate inputs on well.