about:newtab error page shows random memory content
As I was launching Epiphany through Builder/gdb and closing it, I noticed that pretty much everytime I close Epiphany through the "Stop" button in Builder (which presumably sends a SIGTERM signal), the page that gets opened back when launching Epiphany back has (as expected since Epiphany was pretty much killed) an error page, but which contains some random text similar to some completely unrelated memory content.
To better understand what I'm talking about, here is a screenshot of the page and the corresponding HTML code: broken_html_error_page_epiphany.html
As you can see there's random binary data and logs within the page. Note that this is visible for all/most tabs when restoring the window, but the page reloads when you switch to it so unless you cancel loading early enough, it will disappear.
Actually this seems to happen with any error page: try opening http://dsldklsdksqjdkqsjkd.com/ and you'll get the same kind of issue.
Tested from git 2b3af813