JS download file to local (multi-browser compatible)

In the client through the JS download file, tried several download methods, IFRAME mode is limited to IE browser, window.open (URL), Location.href=url These two ways in the Chrome browser will also be directly open the file rather than download, Baidu N Long no results, in Google or find the answer, download links here.

Window.downloadfile =function(sURL) {//IOS devices do not support downloading. We have the to inform user on this.    if(/(IP)/g.test (navigator.useragent)) {Alert (' Your device does not the support files downloading. Try again in desktop browser. '); return false; }    //If in Chrome or safari-download via virtual link click    if(Window.downloadFile.isChrome | |Window.downloadFile.isSafari) {//Creating New link node.        varlink = document.createelement (' A '); Link.href=sURL; if(Link.download!==undefined) {            //Set HTML5 Download attribute. This would prevent file from opening if supported.            varFileName = surl.substring (Surl.lastindexof ('/') + 1, surl.length); Link.download=FileName; }        //dispatching Click event.        if(document.createevent) {varE = document.createevent (' mouseevents '); E.initevent (' Click ',true,true);            Link.dispatchevent (e); return true; }    }    //Force File Download (whether supported by server).    if(Surl.indexof ('? ') = = =-1) {sURL+ = '? Download '; } window.open (sURL,' _self '); return true;} Window.downloadFile.isChrome= Navigator.userAgent.toLowerCase (). IndexOf (' Chrome ') >-1; Window.downloadFile.isSafari= Navigator.userAgent.toLowerCase (). IndexOf (' Safari ') >-1;

JS download file to local (multi-browser compatible)