如何打印动态生成的pdf dataUrl? [英] How to print dynamically generated pdf dataUrl?
问题描述
我正在尝试从网页上打印动态生成的PDF。
I'm trying to print a dynamically generated PDF from a web page.
var $iframe = $('<iframe>');
$iframe.appendTo('body');
$iframe.load(function() {
var iframe = $iframe[0];
var result = iframe.contentWindow.document.execCommand("print", false, null);
if (!result) iframe.contentWindow.print();
$.remove($iframe);
});
$iframe.attr('src', dataUrl);
execCommand()给出错误信息:
execCommand() gives the error message:
Uncaught SecurityError:阻止了一个包含来源
的框架 http:// localhost:2520 从访问具有原点的帧null。
请求访问的帧具有http协议,访问
的帧具有数据协议。协议必须匹配。
Uncaught SecurityError: Blocked a frame with origin "http://localhost:2520" from accessing a frame with origin "null". The frame requesting access has a protocol of "http", the frame being accessed has a protocol of "data". Protocols must match.
此外,设置src attr会发出警告:
Also, setting the src attr gives the warning:
资源被解释为Document但是使用MIME类型application / pdf传输:
Resource interpreted as Document but transferred with MIME type application/pdf:
dataUrl看起来像这样:
The dataUrl looks like this:
data:application/pdf;base64,JVBERi0xLjQKJdP...
编辑:@Mike C
@Mike C
我可以创建iframe并显示pdf,但是当我打印时,它是空白的。
I can create the iframe and display the pdf, but when I print, it's blank.
<style type="text/css" media="print">
body * { display:none }
iframe#theframe { display:block }
</style>
var $iframe = $('<iframe id="theframe" src="'+dataUrl+'"></iframe>');
$iframe.appendTo('body');
$iframe.load(function() {
setTimeout(function() {
window.print();
}, 1000);
});
推荐答案
尝试使用 window.open ()
, document.write()
, setTimeout()
var popup = window.open("", "w");
var html = '<!doctype html><html><head></head>'
+ '<body marginwidth="0" marginheight="0" style="background-color: rgb(38,38,38)">'
+ '<embed width="100%" height="100%" name="plugin" src="data:application/pdf;base64,JVBERi0xLjQKJdP..." type="application/pdf">'
+ '<script>setTimeout("print()", 1000)</script></body></html>';
popup.document.write(html);
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