[BUG] "Target offscreen... Font size: Uninitiated" error is reported when running the experiment in a higher screen size resolution

[natrayank]

Description:
"Target offscreen... Font size: Uninitiated" error is reported when running the experiment in a higher screen size resolution (4096x2160). Looks like this error is reported when the experiment window size (google chrome window) is too small with respect to the screen resolution. The screen resolution is set as 4096x2160. With this higher resolution, if the experiment window size is not big enough, it reports the error. After adjusting the window size to some higher size, able to load experiment successfully.

To Reproduce:

1. Set the screen resolution to 4096x2160.
2. Run the experiment. When the chrome browser is launched, resize the browser window size to a smaller size.
3. Follow the instructions and proceed with the experiment.
   => "Target offscreen... Font size: Uninitiated" error is reported just before displaying the crosshair image.
   If the issue is not recreated, further resize the browser window smaller and try again.

Expected behavior:
Should be able to run the experiment without any error irrespective of the browser window size.

Screenshots:

Desktop (please complete the following information):

OS: Fedora
Browser: Google Chrome

[denispelli]

https://trello.com/c/1LlkDGRM