DOCUMENT:Q187034 05-AUG-2000 [iis] TITLE :Netscape Navigator Errors: "HTTP Error 400"; "400 Bad Request" PRODUCT :Internet Information Server PROD/VER:winnt:4.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Internet Information Server 4.0 ------------------------------------------------------------------------------- SYMPTOMS ======== When browsing an Internet Information Server (IIS) Web site from Netscape Navigator version 4.05, the following error message may occur: HTTP Error 400 400 Bad Request Due to malformed syntax, the request could not be understood by the server. The client should not repeat the request without modifications. CAUSE ===== The Uniform Resource Locator (URL) that Navigator is attempting to open contains a space. WORKAROUND ========== To work around this problem, do one of the following: - On the server, rename the file that contains a space to another name that does not contain a space. -or- - In the Navigator Location text box, substitute "%20" (without the quotation marks) for the space in the URL. The string "%20" is the URL encoding equivalent of a space character. For example, if the URL is http://example.microsoft.com/has space.htm instead use: http://example.microsoft.com/has%20space.htm MORE INFORMATION ================ When you view directories in "directory browse" format (no default.htm in the directory), the link at the top of the page called "[To Parent Directory]" is not URL-encoded with a %20 in place of any space-character in the filename. When you use Netscape Navigator version 4.05 and click the link, the Web server stops responding and the error message occurs. The third-party products discussed here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability. (c) Microsoft Corporation 2000, All Rights Reserved. Contributions by Kevin Zollman, Microsoft Corporation. Additional query words: browser netscape navigator "HTTP ERROR 400" %20 akz ====================================================================== Keywords : Technology : kbiisSearch kbiis400 Version : winnt:4.0 Issue type : kbprb Solution Type : kbpending ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2000.