Added Connection: close header (although not required by http/1.0 spec, it might work better for bad clients)

httpd/httpd.c

@@ -191,7 +191,7 @@ int ICACHE_FLASH_ATTR httpdGetHeader(HttpdConnData *conn, char *header, char *re
 void ICACHE_FLASH_ATTR httpdStartResponse(HttpdConnData *conn, int code) {
 	char buff[128];
 	int l;
-	l=os_sprintf(buff, "HTTP/1.0 %d OK\r\nServer: esp8266-httpd/"HTTPDVER"\r\n", code);
+	l=os_sprintf(buff, "HTTP/1.0 %d OK\r\nServer: esp8266-httpd/"HTTPDVER"\r\nConnection: close\r\n", code);
 	httpdSend(conn, buff, l);
 }
 
@@ -214,7 +214,7 @@ void ICACHE_FLASH_ATTR httpdEndHeaders(HttpdConnData *conn) {
 void ICACHE_FLASH_ATTR httpdRedirect(HttpdConnData *conn, char *newUrl) {
 	char buff[1024];
 	int l;
-	l=os_sprintf(buff, "HTTP/1.1 302 Found\r\nLocation: %s\r\n\r\nMoved to %s\r\n", newUrl, newUrl);
+	l=os_sprintf(buff, "HTTP/1.1 302 Found\r\nServer: esp8266-httpd/"HTTPDVER"\r\nConnection: close\r\nLocation: %s\r\n\r\nMoved to %s\r\n", newUrl, newUrl);
 	httpdSend(conn, buff, l);
 }
 
@@ -277,7 +277,7 @@ static void ICACHE_FLASH_ATTR httpdSentCb(void *arg) {
 	xmitSendBuff(conn);
 }
 
-static const char *httpNotFoundHeader="HTTP/1.0 404 Not Found\r\nServer: esp8266-httpd/"HTTPDVER"\r\nContent-Type: text/plain\r\nContent-Length: 12\r\n\r\nNot Found.\r\n";
+static const char *httpNotFoundHeader="HTTP/1.0 404 Not Found\r\nServer: esp8266-httpd/"HTTPDVER"\r\nConnection: close\r\nContent-Type: text/plain\r\nContent-Length: 12\r\n\r\nNot Found.\r\n";
 
 //This is called when the headers have been received and the connection is ready to send
 //the result headers and data.

httpd/httpdespfs.c

@@ -18,7 +18,7 @@ Connector to let httpd use the espfs filesystem to serve the files in it.
 
 // The static files marked with FLAG_GZIP are compressed and will be served with GZIP compression.
 // If the client does not advertise that he accepts GZIP send following warning message (telnet users for e.g.)
-static const char *gzipNonSupportedMessage = "HTTP/1.0 501 Not implemented\r\nServer: esp8266-httpd/"HTTPDVER"\r\nContent-Type: text/plain\r\nContent-Length: 52\r\n\r\nYour browser does not accept gzip-compressed data.\r\n";
+static const char *gzipNonSupportedMessage = "HTTP/1.0 501 Not implemented\r\nServer: esp8266-httpd/"HTTPDVER"\r\nConnection: close\r\nContent-Type: text/plain\r\nContent-Length: 52\r\n\r\nYour browser does not accept gzip-compressed data.\r\n";
 
 
 //This is a catch-all cgi function. It takes the url passed to it, looks up the corresponding

user/cgiflash.c

@@ -48,7 +48,7 @@ int ICACHE_FLASH_ATTR cgiUploadEspfs(HttpdConnData *connData) {
 	if(connData->post->len > ESPFS_SIZE){
 		// The uploaded file is too large
 		os_printf("ESPFS file too large\n");
-		httpdSend(connData, "HTTP/1.0 500 Internal Server Error\r\nServer: esp8266-httpd/0.3\r\nContent-Type: text/plain\r\nContent-Length: 24\r\n\r\nESPFS image loo large.\r\n", -1);
+		httpdSend(connData, "HTTP/1.0 500 Internal Server Error\r\nServer: esp8266-httpd/0.3\r\nConnection: close\r\nContent-Type: text/plain\r\nContent-Length: 24\r\n\r\nESPFS image loo large.\r\n", -1);
 		return HTTPD_CGI_DONE;
 	}