window.print（）打印空白页面

Question

I get blank page while printing. The border(it may be the frame) is printed. But not the content inside the frame. if we manually print the new page it is getting printed correctly. Why this happen?

var printwindow = window.open('', '', 'fullScreen=no');
printwindow.document.write('<iframe id="docPrint" onLoad="window.print()" width="100%" height="100%" src="http://localhost:8080/hiring/docs/Keneth _1340800082258/Keneth _resume_1340800082258.pdf"></iframe>');

Answer 1

Since you are injecting it dynamically, try escaping / in </iframe> :

'.....<\/iframe>'

Also apply onload to window not iframe:

printwindow.onload = printwindow.print;

So try this instead:

var printwindow = window.open('', '', 'fullScreen=no');
printwindow.document.write('<iframe id="docPrint" width="100%" height="100%" src="http://localhost:8080/hiring/docs/Keneth _1340800082258/Keneth _resume_1340800082258.pdf"></iframe>');
printwindow.onload = printwindow.print;

I am not sure if browser will take your pdf file and print it, if pdf open directly in browser then there is a print option in browser pdf plugin separately.

Answer 2

That is not possible with JavaScript.

I don't know which language your server is written in, but it may be possible to make your PDF auto print .

Answer 3

这里的问题是来自iframe的window.print（）指的是包含iFrame的窗口，而不是其中的内容。