| Tests emulation of the user agent. | |
| navigator.userAgent == Test UA | |
| User-Agent: Test UA | |
| navigator.language == ko | |
| workerNavigator.language == ko | |
| Accept-Language: ko, en;q=0.9, zh-CN;q=0.8, zh-HK;q=0.7, en-US;q=0.6, en-GB;q=0.5 | |
| accept-language: ko | |
| navigator.platform == new_platform | |