Weird Boundary Lines In Canvas mode In Firefox

Hi,
Can anyone explain these boundary lines!
I am trying to take a screenshot in my game, but couldn’t succeed in webgl mode.
So thought of fixing my game to canvas mode.
But in canvas mode, in firefox textures have these weird boundaries.
Can anyone suggest something.
Either to remove these lines, or to implement screenshot in webgl.

Thanks in advance.

@slackmoehrle
Hi, can you help in this regard? Or to extract base 64 from texture in webgl . :roll_eyes:

Create an issue here, please: https://github.com/cocos-creator/engine/issues

Thank you.
I shall do that.

And nothing on getting Base64 data ?