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WININET_E_MIXED_SECURITY
WININET_E_MIXED_SECURITY is a WinINet HRESULT. It means that a secure context is attempting to load or combine content through both HTTPS and insecure HTTP connections. WinINet considers the combination a security concern.
What to check
- Ensure that every endpoint and subresource needed for the operation uses HTTPS where the main workflow is secure.
- Inspect redirects, embedded URLs and proxy rewriting for an unexpected downgrade to HTTP.
- Do not disable mixed-content protections merely to hide the warning; update the insecure dependency instead.
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