文件下载不能在Firefox上运行

Question

我已经编写了这段代码,这些代码在Google Chrome和Opera上运行得很完美,但不适用于Firefox

function onSaveJPG(url,n){
    var save = document.createElement('a');
    save.href = url;
    save.target = '_blank';
    save.download = 'Image no '+n+'.jpeg' || url;
    var event = document.createEvent('Event');
    event.initEvent('click', true, true);
    save.dispatchEvent(event);
    (window.URL || window.webkitURL).revokeObjectURL(save.href);
}

怎么了？请指导我.

Answer 1

这应该工作(我通过查看FileSaver.js代码找出它):

function onSaveJPG(url,n){
    var save = document.createElement('a');
    save.href = url;
    save.download = 'Image no '+n+'.jpeg' || url;
    var event = document.createEvent("MouseEvents");
        event.initMouseEvent(
                "click", true, false, window, 0, 0, 0, 0, 0
                , false, false, false, false, 0, null
        );
    save.dispatchEvent(event);
}

(主要问题是你需要为firefox使用MouseEvent类型事件而不是事件.此代码也适用于Chrome).