Javascript Open Window无法使用％sign打开pdf

Question

我有一个打开的链接，点击该链接打开pdf文件。 相同的代码如下所示，工作正常。

 function OpenPdfPopup(ImageUrl) {
            var winWidth;
            var winHeight;
            winWidth = screen.width;
            winHeight = screen.height;
            var urlpath = ImageUrl + ""
            OpenWindow(urlpath, 'invImageWin', winWidth, winHeight, 'no')

        }
        var viewIMGDocQueue = function (link) {

            var imgName = link.attr("data-imagename"),
            ImageDirectory = link.attr("data-ImageDirectory"),
            companyId = link.attr("data-companyid"),
            winWidth,
            winHeight,
            imageId = link.attr('data-imageid'); // IAMGE ID IS NEEDED TO BE PASSED IN NEW WEBSITE AND THE PAGE LINK IS CHANED TOO.

            imageId = imageId != undefined ? imageId : 0;
            winWidth = screen.width;
            winHeight = screen.height;
            var urlpath = "../workflow/PdfDisplay.aspx?ImageId=" + imageId + "&file=" + imgName;
            OpenWindow(urlpath, 'invImageWin', winWidth, winHeight, 'no');
        };

但是当pdf文件名中包含％符号时会出现问题。 请为它建议解决方案。 注意：文件名不能转义％字符，因此无法在javascript中替换。