Document automatic certificate selection in Chrome on ChromeOS#513
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tashian merged 2 commits intoMay 21, 2026
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Closes CON-263 Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
hslatman
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May 21, 2026
| 4. Add an entry for each protected URL, in the following format: | ||
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| ```json | ||
| {"pattern":"[Server URL pattern]","filter":{"ISSUER":{"CN":"Smallstep [Team Slug] Accounts Intermediate CA"}}} |
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On ChromeOS, we currently only get certs from the Devices authority.
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| {"pattern":"[Server URL pattern]","filter":{"ISSUER":{"CN":"Smallstep [Team Slug] Accounts Intermediate CA"}}} | |
| {"pattern":"[Server URL pattern]","filter":{"ISSUER":{"CN":"Smallstep [Team Slug] Devices Intermediate CA"}}} |
Adding support for (known) additional authorities with ACME DA provisioners shouldn't take long. Making the ChromeOS agent work fully similar to the agent will require more time, though.
| 4. Set the **Issuer pattern** to the full common name of your Smallstep intermediate issuing CA: | ||
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| ``` | ||
| Smallstep [Team Slug] Accounts Intermediate CA |
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Suggested change
| Smallstep [Team Slug] Accounts Intermediate CA | |
| Smallstep [Team Slug] Devices Intermediate CA |
| - Example: `[.*]xample.com` matches `xample.com` and `hello.xample.com` for any scheme, port, and path. It will not match `example.com`. | ||
| - For more examples, see [the Chrome Enterprise docs](https://chromeenterprise.google/policies/url-patterns/). | ||
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| Replace `[Team Slug]` with your Smallstep team slug. |
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Did we remove the parentheses from the automatically generated names? In my testing I had to use, (Team Slug).
J-Hunter-Hawke
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May 21, 2026
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Summary
tutorials/browser-certificate-setup-guide.mdxcovering automatic client certificate selection for both HTTPS (via theAutoSelectCertificateForUrlsChrome policy in the Google Workspace Admin Console) and 802.1X Wi-Fi (via Issuer pattern set to the full Smallstep intermediate CA common name).Closes CON-263.
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