Exception thrown when calling replaceSync() on non-constructed stylesheet: NotAllowedError
Number of CSS rules after replaceSync(): 2
Rule: .test { font-size: 14px; }
Rule: .test2 { font-size: 16px; }
cssRules returns the same object before and after replaceSync(): true
@import rule should be not appear below:
Rule: .test { padding: 100px; }
Calling replaceSync() while the disallow modification flag set throws: NotAllowedError
