[Changelog] RBI saml post support

[cdisher]

Summary

Add POST bindings support for SAML responses from IDPs in the remote browser. Previously led to 405 errors / limitations highlighted here: https://developers.cloudflare.com/cloudflare-one/policies/browser-isolation/known-limitations/#post-request-returns-405-error

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PR Change Summary

Added support for SAML HTTP-POST bindings in Remote Browser Isolation, enhancing authentication capabilities for SSO-enabled applications and resolving previous 405 errors.

• Enabled SAML HTTP-POST bindings for seamless authentication in Remote Browser Isolation.
• Resolved 405 errors related to POST requests from Identity Providers.
• Increased compatibility with Identity Providers like Okta and Azure AD.

Added Files

• src/content/changelog/browser-isolation/2025-05-13-rbi-saml-post-support.mdx

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[github-actions]

This pull request requires reviews from CODEOWNERS as it changes files that match the following patterns:

Pattern	Owners
/src/content/changelog/	@cloudflare/pm-changelogs, @cloudflare/pcx-cloudflare-one

[github-actions]

Preview URL: https://e4e0eed1.preview.developers.cloudflare.com
Preview Branch URL: https://rbi-saml-post-support.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/changelog/2025-05-13-rbi-saml-post-support/	https://rbi-saml-post-support.preview.developers.cloudflare.com/changelog/2025-05-13-rbi-saml-post-support/