javascript - Safari 10 on Mac not uploading file in XHR -


i'm using xhr upload image external server has cors enabled.

everything works fine in chrome, firefox , ie.

but using safari, server response mime type error. saying file type 'application/octet-stream' while should 'image/*'.

after disabled mime type checking, safari can upload file 0b empty file.

anyone knows why?

    var xhr = new xmlhttprequest();     xhr.open('post', 'http://up-z1.qiniu.com/', true);     var formdata;     formdata = new formdata();     formdata.append('key', file.name);     formdata.append('token', acesstoken);     formdata.append('file', file);     xhr.onreadystatechange = function (response) {         if (xhr.readystate == 4 && xhr.status == 200 && xhr.responsetext != "") {             callback(true,null);         } else if (xhr.status != 200 && xhr.responsetext) {             callback(false,null);         }     };     xhr.send(formdata);

so according stackoverflow question, cant remember 1 safari has bug when other browsers file.toblob(), safari file.tostring(). workaround write own file blob function , upload blob.

var xhr = new xmlhttprequest(); xhr.open('post', 'http://up-z1.qiniu.com/', true); var formdata; formdata = new formdata(); formdata.append('key', file.name); formdata.append('token', acesstoken); formdata.append('file', filetoblob(file)); xhr.onreadystatechange = function (response) {     if (xhr.readystate == 4 && xhr.status == 200 && xhr.responsetext != "") {         callback(true,null);     } else if (xhr.status != 200 && xhr.responsetext) {         callback(false,null);     } }; xhr.send(formdata);

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