Don't trigger Content-Security-Policy errors due to injecting styles

[taion]

• I have searched the issues of this repository and believe that this is not a duplicate.

Expected Behavior

Pages using react-swipeable-views with locked-down style-src should not show Content-Security-Policy errors from using react-swipeable-views.

Current Behavior

injectStyle tries to inject inline styling for old browsers. IE10 at least doesn't even support style-src, and it's likely the sufficiently old versions of Safari don't do so either.

Steps to Reproduce (for bugs)

This shows up immediately when disabling inline CSS with Content-Security-Policy,

Context

This is just a slight annoyance when using locked-down CSP for styling and using this library. I think the easiest fix (per the title) is to just try-catch the style injection.

Your Environment

Tech	Version
react-swipeable-views	0.12.13
React	16.4.0
platform	OS X

[oliviertassinari]

@taion Yes, I agree. Thanks for raising!

[taion]

Okay, it turns out there's no actual exception here to catch. What do you think of adding some sort of function to disable the "style injection" behavior?

[oliviertassinari]

@taion What do you think of removing this code? I think that it's time 🚀

react-swipeable-views/packages/react-swipeable-views/src/SwipeableViews.js

Lines 25 to 26 in 248fec1

	// Support old version of iOS and IE 10.
	// To be deleted in 2019.

[taion]

I'd be all for it. It's not quite 2019 yet, though.

[oliviertassinari]

Plans are made to be changed :).