Question

I used to be able to do this to create an exported HTML page containing some data. But the code is not working with the latest version of Google Chrome (It works all right with Chrome 5.0.307.11 beta and all other major browsers).

function createExport(text) {  
    var target = window.open();  
    target.title = 'Memonaut - Exported View';  
    target.document.open();  
    target.document.write(text);  
    target.document.close();  
}

Chrome now complains that the domains don’t match and disallows the JavaScript calls as unsafe. How can I access and modify the document of a newly opened browser-tab in such a scenario?

Answer 1

I also got this problem when using a local page using the file:// protocol (in Chromium 5.0.342.9 (Developer Build 43360) under Linux). The exact error message is:

Unsafe JavaScript attempt to access
frame with URL about:blank from frame
with URL
file:///home/foo/bar/index.htm.
Domains, protocols and ports must
match.

Apparently the protocols don’t match, but the good news is: when this page on a web server, Chromium also opens a new window as “about:blank”, but it doesn’t complain any longer. It also works when using a local web server accessed via http://localhost.

EDIT: there is bug filed upstream about this. According to this comment, it is fixed and it will be rolled into trunk shortly.

UPDATE: this bug is now fixed, the following test case works properly:

var target = window.open();
target.title = 'Memonaut - Exported View';
target.document.open();
target.document.write("test");
target.document.close();