Wwv_flow.accept: SIGNATURE (parameter names) MISMATCH in Internet Explorer

Question

Hi,
I have an multiple files upload applet embedded in my ApEx page.
+if (_ie == true) {+
document.writeln('<OBJECT classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93" WIDTH="250" HEIGHT="250" NAME="fileupload" codebase="http://java.sun.com/update/1.4.2/jinstall-1_4-windows-i586.cab#Version=1,4,0,0">');
+}+
+else {+
document.writeln('<APPLET CODE="jfileupload.upload.client.MApplet.class" JAVA_CODEBASE="./" ARCHIVE="/lib/jfileupload.jar,/lib/httpimpl.jar,/lib/chttpclient.jar,/lib/clogging.jar" WIDTH="250" HEIGHT="250" NAME="fileupload">');
+}+
+// BEGIN: Update parameters below for INTERNET EXPLORER, FIREFOX, SAFARI, OPERA, MOZILLA, NETSCAPE 6+ support.+
document.writeln('<PARAM NAME=CODE VALUE="jfileupload.upload.client.MApplet.class">');
document.writeln('<PARAM NAME=CODEBASE VALUE="./">');
document.writeln('<PARAM NAME=ARCHIVE VALUE="lib/jfileupload.jar,lib/httpimpl.jar,lib/chttpclient.jar,lib/clogging.jar">');
document.writeln('<PARAM NAME=NAME VALUE="fileupload">');
document.writeln('<PARAM NAME="type" VALUE="application/x-java-applet;version=1.4">');
document.writeln('<PARAM NAME="scriptable" VALUE="true">');
document.writeln('<PARAM NAME="url" VALUE="http://localhost:8080/upload/process.jsp">');
document.writeln('<PARAM NAME="paramfile" VALUE="uploadfile">');
document.writeln('<PARAM NAME="param1" VALUE="todo">');
document.writeln('<PARAM NAME="value1" VALUE="upload">');
document.writeln('<PARAM NAME="mode" VALUE="http">');
+// END+
+if (_ie == true) {+
document.writeln('</OBJECT>');
+}+
+else {+
document.writeln('</APPLET>');
+}+
and everything works just fine in Firefox. In IE the applet & upload works also just fine, but when pressing any of the buttons / links that do doSubmit(...) I get wwv_flow.accept: SIGNATURE (parameter names) MISMATCH. Checked the logs
wwv_flow.accept: SIGNATURE (parameter names) MISMATCH
VARIABLES IN FORM NOT IN PROCEDURE: FILEUPLOAD
NON-DEFAULT VARIABLES IN PROCEDURE NOT IN FORM:
DAD name: apex
PROCEDURE  : wwv_flow.accept
URL        : http://localhost:7777/pls/apex/wwv_flow.accept
PARAMETERS :
+===========+
P_FLOW_ID:
+300+
P_FLOW_STEP_ID:
+406+
P_INSTANCE:
[phone]+
P_PAGE_SUBMISSION_ID:
+1665117950048907+
P_REQUEST:
UPDATE
+...+
P_T19:
+20+
P_ARG_VALUES:
+4A2329731083629E48F9E21DBF30E047+
FILEUPLOAD:
+jfileupload.upload.client.MApplet[panel1,0,0,400x250,layout=java.awt.BorderLayout,rootPane=javax.swing.JRootPane[,0,0,400x250,layout=javax.swing.JRootPane$RootLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true]+
P_MD5_CHECKSUM:
ENVIRONMENT:
+============+
PLSQL_GATEWAY=WebDb
GATEWAY_IVERSION=3
SERVER_SOFTWARE=Oracle-Application-Server-10g/10.1.2.0.0 Oracle-HTTP-Server
GATEWAY_INTERFACE=CGI/1.1
SERVER_PORT=7777
SERVER_NAME=localhost
REQUEST_METHOD=POST
QUERY_STRING=
PATH_INFO=/wwv_flow.accept
SCRIPT_NAME=/pls/apex
REMOTE_HOST=
REMOTE_ADDR=10.10.1.27
SERVER_PROTOCOL=HTTP/1.1
REQUEST_PROTOCOL=HTTP
REMOTE_USER=APEX_PUBLIC_USER
ORACLE_SSO_USER=
OSSO_IDLE_TIMEOUT_EXCEEDED=
OSSO_USER_GUID=
HTTP_CONTENT_LENGTH=18694
HTTP_CONTENT_TYPE=multipart/form-data; boundary=---------------------------7d91d73a3d06d6
HTTP_USER_AGENT=Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; SLCC1; .NET CLR 2.0.50727; .NET CLR 1.1.4322; InfoPath.1; .NET CLR 3.5.30729; OfficeLiveConnector.1.4; OfficeLivePatch.1.3; .NET CLR 3.0.30729)
HTTP_HOST=localhost:7777
HTTP_ACCEPT=image/gif, image/jpeg, image/pjpeg, application/x-ms-application, application/vnd.ms-xpsdocument, application/xamlxml, application/x-ms-xbap, application/x-shockwave-flash, application/x-silverlight, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*+
HTTP_ACCEPT_ENCODING=gzip, deflate
HTTP_ACCEPT_LANGUAGE=en-US,nl-BE;q=0.7,fr-BE;q=0.3
HTTP_ACCEPT_CHARSET=
HTTP_IF_MODIFIED_SINCE=
HTTP_REFERER=http://localhost/pls/apex/f?p=300:406:640383331330048::NO:406:P406_SALE_ID:41
HTTP_SOAPACTION=
HTTP_ORACLE_ECID=1257265252:77.73.101.136:8384:8244:2,0
HTTP_ORACLE_CACHE_VERSION=
HTTP_AUTHORIZATION=
WEB_AUTHENT_PREFIX=
DAD_NAME=apex
DOC_ACCESS_PATH=docs
DOCUMENT_TABLE=wwv_flow_file_objects$
PATH_ALIAS=
REQUEST_CHARSET=WE8MSWIN1252
REQUEST_IANA_CHARSET=WINDOWS-1252
SCRIPT_PREFIX=/pls
+...+
and looks like IE submits also the fileupload OBJECT object :(. Anyone hit this issue before? Any idea's how can I make IE ignore / not submit that object?
Thanks in advance,
Florin

Answer 1

Florin:
Is the 'NAME' attribute required for the APPLET ? If not, just remove it or specify 'f01' (assuming you don't have any other apex_item generated items in the page) instead.
Varad