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Mobile app WebViews: CORS, custom schemes, and native bridges
Embedded browsers differ from Chrome desktop; test on real devices with your API policy.
1 min read
mobilewebviewcors
WebView quirks
Cookie and storage partitioning may differ from full browsers; SameSite rules still matter for credentialed flows.
File or app-origin URLs can complicate what counts as same-origin for local assets.
Native bridges
For privileged calls, prefer native HTTP stacks that bypass CORS rather than weakening server policy.
If you must call from JavaScript, keep allowlists tight and audit third-party SDKs inside the WebView.