javascript - Uploading image to server gives "URI formats are not supported." exception -

i have wcf service function upload images below:

public function upload(uploading stream) uploadedfile implements iservice.upload     dim strpath string = io.path.getdirectoryname(system.reflection.assembly.getexecutingassembly.codebase)     dim upload__1 new uploadedfile() {         .filepath = path.combine(strpath & "/pps/", guid.newguid().tostring())             }     strpath = new uri(strpath).localpath      dim length integer = 0      using writer new filestream(upload__1.filepath, filemode.create)         dim readcount integer         dim buffer = new byte(8191) {}         while (inlineassignhelper(readcount, uploading.read(buffer, 0, buffer.length))) <> 0             writer.write(buffer, 0, readcount)             length += readcount         end while     end using      upload__1.filelength = length      return upload__1 end function 

i added line: strpath = new uri(strpath).localpath in attempt solve problem suggested many posts, did not work. call function javascript function code:

 request.open('post', 'http://localhost:55288/serviceapiserver.svc/upload/');   request.setrequestheader("x-filename",id + ".jpeg");   request.send(imageuri); 

the imageuri of form: "blob:http%3a//localhost%3a5232/04dhg421-3jd45-3hj-926f-8d" i'd wcf function save image file name received (i.e id + ".jpeg"). please guide done here.