I am getting this error in JavaScript:
Viewport argument value \"device-width;\" for key \"width\" is invalid, and has been ignored. Note that \';\' is no
I had this same error. Oddly, it's quite simple to fix. Just change the semicolons for commas, like in:
<meta name="viewport" content="width=device-width, height=device-height, initial-scale=1.0, user-scalable=yes">