javascript - jsZip opened png image, POST it into server with ajax -


trying post .png image files zip jszip. same code works when trying same stuff .xml files , .mod files, not working .png files.

the code i'm using is:

jszip.loadasync(f) // f .zip file in input field .then(function(zip) {     zip.foreach(function (relativepath, zipentry) {         zipentry.async("string").then(function (data) {             //data png image             var pngfilepath="/serverimagespath/" + zipentry.name;             var blob = dataurltoblob(data);             $.ajax({               type: "post",               url:  pngfilepath,               data: blob,               datatype: "binary",             }).done(function ( ) {                 console.log('put correctly png- ' + pngfilepath);             }).fail(function ( jqxhr, textstatus, errorthrown ) {                 console.log("err png: " + errorthrown, textstatus);             });         });     }); });   function dataurltoblob(dataurl) {     var arr = dataurl.split(','), mime = arr[0].match(/:(.*?);/)[1],         bstr = atob(arr[1]), n = bstr.length, u8arr = new uint8array(n);     while(n--){         u8arr[n] = bstr.charcodeat(n);     }     return new blob([u8arr], {type:mime}); }

what i'm doing wrong?

$.ajax try process content unicode string. add processdata: false, see this answer (and jquery documentation):

$.ajax({   type: "post",   url:  pngfilepath,   data: blob,   processdata: false })

you can simplify bit code, .async() supports blob:

zipentry.async("blob").then(function (blob) {   // ...   $.ajax({     type: "post",     url:  pngfilepath,     data: blob,     contenttype: "image/png", // or compute     processdata: false   })   // ...

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