Some features only become available when they ship in Chrome Canary, and can't be activated by a.Not all experimental features get their own Chrome flag: Documentation for new features willĮxperiments and give feedback, by toggling Experiment settings and relaunching the browser. You can enable a range of experimental features that don't have their own flag, by toggling theĬhrome://flags#enable-experimental-web-platform-features flag. Two other ways to try out experimental features This example matches the example above, that runs Chrome from the command line with flags. You can check what flags are enabled in your browser. Instead, take a look at chrome://version. The flags you set running Chrome from the command line don't work as expected, you should check yourĪlso be aware that chrome://flags might not show the flag settings you've used from theĬommand line. In particular, the defaults forĪ chrome://flags setting might, in some cases, override your command line configurations. It's possible that the flags you set could conflict with each other. That's just one example! There are hundreds of other flags for activating, deactivating andĬonfiguring less well-known features. enable-features=BrowsingTopics:time_period_per_epoch/15s,PrivacySandboxAdsAPIsOverride,PrivacySandboxSettings3,OverridePrivacySandboxSettingsLocalTesting More Chrome settings you can configure from the command line than what's available on theįor example, to run Chrome Canary from a terminal on a Mac, with the Topics API activated and epoch length set to 15 seconds, use theįollowing command: /Applications/Google\ Chrome\ Canary.app/Contents/MacOS/Google\ Chrome\ Canary You run the command to open Chrome, and add the flags you want to set. If you're a web developer, you may want to set flags by opening Chrome from the command line in a Note: If you make changes to chrome://flags, all the flags you've changed are listed first on the Now you can use the heads-up display that shows technical information about web page performance. To set a flag from the chrome://flags page in Chrome, you need to find the flag, toggle the settingįor example, to activate Chrome's heads-up display for performance metrics: By opening Chrome from the command line in a terminal.Key point: Make sure to test your site in Chrome Stable without any flags set: as the majority of your users The availability of flags depends on which version of Chrome you're running. Some flags affect the wayĬhrome looks or works, and some activate new functionality such as CSS features or JavaScript APIs. There are a large number of flags for many different types of features. Having said all that, if you're a web developer who needs to try out new technology-or just aĬurious geek-then getting to know Chrome flags can be really worthwhile. Take a look at enterprise policies instead.and proceed with caution If you're an enterprise IT admin, you should not use Chrome flags in production. By activating or deactivating features, youĬould lose data or compromise your security or privacy-and features you toggle with a flag may stop If you do set Chrome flags, you need to be careful. Most Chrome users will never need to use Chrome flags. The codeĪnd design were tested and polished based on the feedback, so now you can use picture-in-picture byĭefault in Chrome-and it works really well. The feature was made available behind a flag, so any user to try it out and give feedback. Chrome flags are a way to activate browser features that are not available by default.įor example, Chrome wanted to allow users to try picture-in-picture video functionality, before rolling it out to everyone.
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