Question

我们希望在浏览器中显示PDF而不是下载它。在版本为11.15.16299及更高版本的IE11中，这可以按预期工作。在IE11 11.0.9600及更低版本中，PDF将作为下载输出而不是显示。控制台内没有错误。是否有＆lt; = IE11的解决方案？

*注意：由于此处所述的原因，我们无法保存文件，pdf-base64不是一个选项Recommended way to embed PDF in HTML?

HTML

<!-- Tried workaround foo.pdf from https://stackoverflow.com/a/8882132/7302498 -->
<form action="MyWebApiUrl/WriteFileStreamToResponse/foo.pdf" method="post">
   <input type="hidden" name="transferdata" id="transferdata"  />
   <input type="submit" value="Send" />
</form>

Web-Api（C＃）

private void WriteFileStreamToResponse(transferdata)
{
    var aFileStream= GetPdfAsFilestream(transferdata);
    byte[] pdfBytes = ReadFully(aFileStream);
    var response = HttpContext.Response;
    response.ClearContent();
    response.ContentType = "application/pdf";
    response.AddHeader("Content-Disposition", "inline");
    response.AddHeader("Content-Length", pdfBytes.Length.ToString());
    response.BinaryWrite(pdfBytes);
    response.End();
}

private static byte[] ReadFully(Stream input)
{
    byte[] buffer = new byte[16 * 1024];
    using (MemoryStream ms = new MemoryStream())
    {
        int read;
        while ((read = input.Read(buffer, 0, buffer.Length)) > 0)
        {
            ms.Write(buffer, 0, read);
        }
        return ms.ToArray();
    }
}

IE9 / IE10 / IE11下载PDF而不是使用Content-Disposition = inline显示

0 个答案: