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File Upload widget with multiple file selection, drag and drop support, progress bar, validation and preview images, audio and video for jQuery. Supports cross-domain, chunked and resumable file uploads. Works with any server-side platform (Google App Engine, PHP, Python, Ruby on Rails, Java, etc.) that supports standard HTML form file uploads.

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(function(a){if(typeof define==="function"&&define.amd){define(["jquery"],a)}else{if(typeof exports==="object"){a(require("jquery"))}else{a(window.jQuery)}}}(function(c){var a=0,d=c,b="parseJSON";if("JSON" in window&&"parse" in JSON){d=JSON;b="parse"}c.ajaxTransport("iframe",function(f){if(f.async){var e=f.initialIframeSrc||"javascript:false;",h,g,i;return{send:function(j,k){h=c('
');h.attr("accept-charset",f.formAcceptCharset);i=/\?/.test(f.url)?"&":"?";if(f.type==="DELETE"){f.url=f.url+i+"_method=DELETE";f.type="POST"}else{if(f.type==="PUT"){f.url=f.url+i+"_method=PUT";f.type="POST"}else{if(f.type==="PATCH"){f.url=f.url+i+"_method=PATCH";f.type="POST"}}}a+=1;g=c('').bind("load",function(){var l,m=c.isArray(f.paramName)?f.paramName:[f.paramName];g.unbind("load").bind("load",function(){var n;try{n=g.contents();if(!n.length||!n[0].firstChild){throw new Error()}}catch(o){n=undefined}k(200,"success",{iframe:n});c('').appendTo(h);window.setTimeout(function(){h.remove()},0)});h.prop("target",g.prop("name")).prop("action",f.url).prop("method",f.type);if(f.formData){c.each(f.formData,function(n,o){c('').prop("name",o.name).val(o.value).appendTo(h)})}if(f.fileInput&&f.fileInput.length&&f.type==="POST"){l=f.fileInput.clone();f.fileInput.after(function(n){return l[n]});if(f.paramName){f.fileInput.each(function(n){c(this).prop("name",m[n]||f.paramName)})}h.append(f.fileInput).prop("enctype","multipart/form-data").prop("encoding","multipart/form-data");f.fileInput.removeAttr("form")}h.submit();if(l&&l.length){f.fileInput.each(function(o,n){var p=c(l[o]);c(n).prop("name",p.prop("name")).attr("form",p.attr("form"));p.replaceWith(n)})}});h.append(g).appendTo(document.body)},abort:function(){if(g){g.unbind("load").prop("src",e)}if(h){h.remove()}}}}});c.ajaxSetup({converters:{"iframe text":function(e){return e&&c(e[0].body).text()},"iframe json":function(e){return e&&d[b](c(e[0].body).text())},"iframe html":function(e){return e&&c(e[0].body).html()},"iframe xml":function(e){var f=e&&e[0];return f&&c.isXMLDoc(f)?f:c.parseXML((f.XMLDocument&&f.XMLDocument.xml)||c(f.body).html())},"iframe script":function(e){return e&&c.globalEval(c(e[0].body).text())}}})}));