for some reason as soon as i launch chrome developer tools i get a grid overlay.. as depicted:

enter image description here

I tried uninstalling all the unnecessary chrome apps (that may be causing this).. and restarted chrome, but the grid still shows up.

Interestingly, as soon as I close google dev tools the grid disappears.. so it must be a behavior related to dev tools.. How Do I turn it off?

  • Does this only occur on tiled map displays , made up of many smaller pictures that form a grid that looks just like that?
    – Psycogeek
    Jun 28, 2014 at 9:03
  • 1
    that's totally coincidental.. this grid also happens in non-map pages as well.. thanks for raising that point..
    – abbood
    Jun 28, 2014 at 10:23
  • but let me also add that i noticed these grids only happen on experimental pages (ie a small site i'm running out of my localhost).. both angular apps as well
    – abbood
    Jun 28, 2014 at 10:24

1 Answer 1


turns out to be an option in chrome dev tools i turned on by mistake under rendering: show composited layer borders:

enter image description here

checking it off solved the problem

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