Why does the page go blank when injecting JavaScript code via the address bar?

Question

118 views Asked by user3413653 At 22 June 2015 at 19:03

So if I want to make a change, for example in this page (stackoverflow.com), using:

javascript:document.getElementById("hlogo").innerHTML = "10";

The page goes blank, only showing the string "10", even though the source code is still there.

Yet if I do this in an HTML document internally via the JavaScript console it doesn't remove the rest of the content visually.

There are 1 answers

**A. Andres** · Accepted Answer · 2015-06-22 19:12:51

A. Andres On 22 June 2015 at 19:12 BEST ANSWER

Append a void(0) or any expression returning an undefined value:

javascript:document.getElementById("hlogo").innerHTML = "10";void(0);