EHOSTUNREACHEHOSTUNREACH — Host Unreachable
The specific host cannot be reached on the network.
CSP: Inline script/style blockedAn inline script or style was blocked by the Content Security Policy.
The CSP policy does not allow inline scripts (script-src) or inline styles (style-src). This includes <script> tags, onclick attributes, javascript: URLs, and inline style attributes.
Move inline scripts to external files. Use nonces or hashes: script-src 'nonce-abc123'. Add 'unsafe-inline' as a last resort (reduces security). Use Content-Security-Policy-Report-Only for testing.
EHOSTUNREACHThe specific host cannot be reached on the network.
REFUSEDThe DNS server refused to answer the query.
ERR_CERT_AUTHORITY_INVALIDThe SSL/TLS certificate is issued by a certificate authority that is not trusted.
ECONNREFUSEDThe server actively refused the connection attempt.
CORS: Preflight request failedThe CORS preflight OPTIONS request was rejected by the server.
SSL_ERROR_HANDSHAKE_FAILUREThe SSL/TLS handshake between client and server failed.