code: function isSupportedInAllBrowsers(bcdProperty) {
  	if (bcdProperty.__compat) {
  		return Object.keys(browserNames).every((abbrev) => {
  			const browserName = browserNames[abbrev].toLowerCase()
  			if (bcdProperty.__compat && bcdProperty.__compat.support[browserName]) {
  				const browserSupport = bcdProperty.__compat.support[browserName]
  				if (browserSupport) {
  					return isSupported(browserSupport)
  				}
  			}
  
  			return false
  		})
  	} else {
  		return Object.keys(browserNames).every((abbrev) => {
  			const browserName = browserNames[abbrev].toLowerCase()
  
  			return Object.keys(bcdProperty).some(contextName => {
  				const context = bcdProperty[contextName]
  				if (context.__compat && context.__compat.support[browserName]) {
  					const browserSupport = context.__compat.support[browserName]
  					if (browserSupport) {
  						return isSupported(browserSupport)
  					}
  				}
  
  				return false
  			})
  		})
  	}
  }
docs: Check that a property is supported in all major browsers: Edge, Firefox, Safari, Chrome, IE, Opera