* HcHttpClient is an HTTP client implementation that extends AbstractCrawlerClient.
 * It provides various configurations and settings for making HTTP requests, including
 * connection timeouts, proxy settings, user agent, request headers, cookie management,
 * and SSL configurations. The client also supports robots.txt parsing and form-based
 * authentication schemes.
 *
 * <p>Key properties and configurations:</p>
 * <ul>

				"message/example",
				"message/external-body",
				"message/global",
				"message/global-delivery-status",
				"message/global-disposition-notification",
				"message/global-headers",
				"message/http",
				"message/imdn+xml",
				"message/news",
				"message/partial",
				"message/s-http",
				"message/sip",
				"message/sipfrag",
				"message/tracking-status",

contentType)&&v.setRequestHeader("Content-Type",k.contentType),v.setRequestHeader("Accept",k.dataTypes[0]&&k.accepts[k.dataTypes[0]]?k.accepts[k.dataTypes[0]]+("*"!==k.dataTypes[0]?", "+pc+"; q=0.01":""):k.accepts["*"]);for(j in k.headers)v.setRequestHeader(j,k.headers[j]);if(k.beforeSend&&(k.beforeSend.call(l,v,k)===!1||2===t))return v.abort();u="abort";for(j in{success:1,error:1,complete:1})v[j](k[j]);if(c=sc(oc,k,b,v)){v.readyState=1,i&&m.trigger("ajaxSend",[v,k]),k.async&&k.timeout>0&&(g=set...