Unified · Split
| @@ -252,7 +252,7 @@ · 251 unmodified lines | ||
| 252 | 252 | matchMedia: !!window.matchMedia |
| 253 | 253 | insertAdjacentHTML: !!document.body.insertAdjacentHTML |
| 254 | 254 | defaultPrevented: document.createEvent('CustomEvent').defaultPrevented is false |
| 255 | − cssVariables: CSS.supports and CSS.supports('(--t: 0)') | |
| 255 | + cssVariables: !!CSS?.supports?('(--t: 0)') | |
| 256 | 256 | |
| 257 | 257 | for key, value of features when not value |
| 258 | 258 | Raven.captureMessage "unsupported/#{key}", level: 'info' |