Description: ------------ We have found a case where a web server running Microsoft-IIS/5.0 returns an "HTTP/1.1 302 MOVED TEMPORARILY" header as the first line of the response. The problem is that, between the rest of the header lines, it is including an invalid "HTTP/1.1 404 Not Found" header which is generating a warning in method "_processHeader" in this line: list($headername, $headervalue) = explode(':', $header, 2); We have added a previous validation in order to ignore malformed headers. Test script: --------------- Here you have the erroneous HTTP response. For example, Firefox web browser seems to ignore the invalid header. http://www.biomedcentral.com/currtreatoptionsgastroenterol I'm including the contents of the diff function in case you want to apply a patch: Index: Request.php =================================================================== --- Request.php (revisión: 820) +++ Request.php (copia de trabajo) @@ -1075,6 +1075,8 @@ */ function _processHeader($header) { + // If the header has an invalid syntax, ignore it + if (strpos($header,':') === false) return; list($headername, $headervalue) = explode(':', $header, 2); $headername = strtolower($headername); $headervalue = ltrim($headervalue);