How to return ArrayBuffer to the client by Nodejs

Asked Aug 21 '16 at 08:54

Active Aug 21 '16 at 09:39

Viewed 1,769 times

I want to use Node.js to return arrayBuffer to the client, but I found some problems.

my node server.js:

res.write(new Buffer([0,1,2]));
res.writeHead(200,{'Access-Control-Allow-Origin':'*','Access-Control-Allow-Method':'GET,POST','Content-Type':'application/octet-stream'});
res.end();

and my client code:

var xhr = new XMLHttpRequest();
xhr.responseType = "arraybuffer";
xhr.open("post","http://localhost:8008/");
xhr.onload = function(data){
    if (xhr.status === 200) {
        console.log('succuess');
        console.log(typeof this.response);
    }
}

but the chrome console error:

POST http://localhost:8008/ net::ERR_INVALID_CHUNKED_ENCODING

edited Aug 21 '16 at 09:39

Alex M

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asked Aug 21 '16 at 08:54

laoqiren

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This might be helpful: http://stackoverflow.com/questions/8609289/convert-a-binary-nodejs-buffer-to-javascript-arraybuffer – Alex M Aug 21 '16 at 09:41
thanks, but my question is how to solve the error when I send the arraybuffer to client – laoqiren Aug 21 '16 at 09:49
Could you show all headers of the request/response shown in the Chrome network tab? – Alex M Aug 21 '16 at 10:53
request:Content-Type:multipart/form-data; boundary=----WebKitFormBoundaryyPMvpTJ4opJKYx3N Origin:null User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36 – laoqiren Aug 21 '16 at 11:32
and there is no response header because the request is failed – laoqiren Aug 21 '16 at 11:32
Taking into account your request is POST, what data do you send? – Alex M Aug 21 '16 at 11:47
Have you tried to set `Transfer-Encoding: chunked` header? – Alex M Aug 21 '16 at 11:49
to add set this header where? request or response? – laoqiren Aug 21 '16 at 11:53
just now I added this header to response header, but the same error shows – laoqiren Aug 21 '16 at 11:56

How to return ArrayBuffer to the client by Nodejs

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