javascript - Add content to a new open window

Question

I don't know how to solve this issue, I've trying reading many post but no one answer to it.

I need to open a new window with a page already coded (inside the same domain) and add some content.

The problem is that if I use OpenWindow.write() the page is not loaded yet or it overrides everything and only the code added through write appears.

var OpenWindow = window.open('mypage.html','_blank','width=335,height=330,resizable=1');
OpenWindow.document.write(output);

output is the code I need to append.

I need it to work at least on Firefox, IE and GC.

Thanks in advance. It is not a problem if I need to use JQuery.

Answer 1

When You want to open new tab/window (depends on Your browser configuration defaults):

output = 'Hello, World!';
window.open().document.write(output);

When output is an Object and You want get JSON, for example (also can generate any type of document, even image encoded in Base64)

output = ({a:1,b:'2'});
window.open('data:application/json;' + (window.btoa?'base64,'+btoa(JSON.stringify(output)):JSON.stringify(output)));

Update

Google Chrome (60.0.3112.90) block this code:

Not allowed to navigate top frame to data URL: data:application/json;base64,eyJhIjoxLCJiIjoiMiJ9

When You want to append some data to existing page

output = '<h1>Hello, World!</h1>';
window.open('output.html').document.body.innerHTML += output;

output = 'Hello, World!';
window.open('about:blank').document.body.innerText += output;