HRESULT 0x8019019E (HTTP_E_STATUS_URI_TOO

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Description:

The server returned HTTP 414 URI Too Long.

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HTTP_E_STATUS_REQUEST_TOO_LARGE	HTTP_E_STATUS_UNSUPPORTED_MEDIA

HTTP_E_STATUS_URI_TOO_LONG

HTTP_E_STATUS_URI_TOO_LONG maps to HTTP 414 URI Too Long. The request target exceeds the length the server is willing to process, often because of an oversized query string or a redirect loop that keeps extending the URI.

What to check

Measure the final request target after URL encoding and redirects.
Look for repeated parameters, serialized state, token leakage into a query string, or rewrite loops.
Redesign the request only in a way that preserves API semantics; do not move sensitive data to a URL merely to work around another limit.

RFC 9110: 414 URI Too Long

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