javascript - Form submit File and complex Json -


how submit complex json object along file upload?

i can simple json object successfully, fails complex json:

e.g. [file] + { simple: object } -- okay

e.g. [file] + {some: {complex: 'asdf'}, object:['str1','str2']} -- fails

    //here simple json data     var params = {simple: 'jsondata'};      //here header enable json stuff     var headers = {         'content-type': 'application/json',         'accept': 'application/json, text/javascript, */*',         'datatype': 'json'     };      //assume have files in html form     var files = fi.button.fileinputel.dom.files;      form.submit({         url: '/some/api',         waitmsg: 'uploading file...',         headers: headers,         params: params,         success: function(a, b) {             //done...         }     });

the code above fails when params complex json object more 1 layer. using extjs, uses jquery guess html form question same across different js libs.

when doing file uploading, ext form post hidden iframe, need parse data such.


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