6.1 to 7.0 compatability mode security exception

I have a 7.0 server in compatability mode with a client which obtains
contexts to both
servers and attempts to execute beans on both servers.
However in certain cases I get the following exception
Anyone seen this.
I do have a support case open.
Exception on login...
java.lang.SecurityException: Invalid Subject: principals=[system]
Start server side stack trace:
java.lang.SecurityException: Invalid Subject: principals=[system]
at
weblogic.security.service.SecurityServiceManager.seal(SecurityService
Manager.java:943)
at
weblogic.rjvm.MsgAbbrevInputStream.getSubject(MsgAbbrevInputStream.ja
va:147)
at
weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.jav
a:309)
at
weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest
.java:30)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:153)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:134)
End server side stack trace
at
weblogic.rmi.internal.BasicOutboundRequest.sendReceive(BasicOutboundR
equest.java:85)
at
weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteR
ef.java:262)
at
weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteR
ef.java:229)
at weblogic.rmi.internal.ProxyStub.invoke(ProxyStub.java:35)
at $Proxy1.getHomeHandle(Unknown Source)
at com.tfn.autex.util.Service.getHome(Service.java:146)
at
com.tfn.autex.util.ServiceLocator.getService(ServiceLocator.java:89)
at
com.tfn.autex.connection.WLInstance.getFixSessionBean(WLInstance.java
:330)
at
com.tfn.autex.connection.WLInstance.loginConnection(WLInstance.java:4
76)
at
com.tfn.autex.connection.HostConnectionImpl.loginConnection(HostConne
ctionImpl.java:496)
at
com.tfn.autex.TestClient.FixDriverTest.login(FixDriverTest.java:106)
at
com.tfn.autex.TestClient.FixDriverTest.main(FixDriverTest.java:312)
Invalid Subject: principals=[system]
Start server side stack trace:
java.lang.SecurityException: Invalid Subject: principals=[system]
at
weblogic.security.service.SecurityServiceManager.seal(SecurityService
Manager.java:943)
at
weblogic.rjvm.MsgAbbrevInputStream.getSubject(MsgAbbrevInputStream.ja
va:147)
at
weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.jav
a:309)
at
weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest
.java:30)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:153)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:134)
End server side stack trace
Terminate batch job (Y/N)? y
C:\projects\jcvs\its\java\3.1-75>'

Hard to say without more information. I'd start by taking some simple
timing checks or profiles on both the 6.x and 7.0 servers and comparing.
It'd be helpful to get a general idea which area of the system is
slower (ie is it in the web tier, ejbs, accessing the 3rd party data etc.)
-- Rob
Tony Heiderscheidt wrote:
We are migrating an exsiting application from WLS 6.1 to WLS 7.0 SP1. Performance degraded significantly with only this change. Is there anything obvious or identified as to why when all other things remain constant that this Upgrade would cause such an impact.
The application basically takes a http transaction, invokes an EJB, the EJB uses RAR's for access to 3rd party data.
Environment:
OS - HP Tru64 5.1a
JVM - Java Fast VM (1.3.1-2)
WLS version - WLS 7.0 SP1
We can upgrade to the latest JVM from HP and maybe increase performance however that only masks the issue and doesn't correct or identify the problem.

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Firefox will not open unless I run it in compatibility mode (Windows XP SP 3), run it as an administrator, or launch it immediately after a reinstall (the reinstall thing only works once.) How do I fix this?

This morning, Firefox crashed. After this, when I click the Firefox icon, the hourglass appears and then nothing happens. Firefox does briefly appear in the task manager when I do this.
I tried rebooting. I tried reinstalling multiple times. (Firefox will run when I select "Launch Firefox" from the installer. Then the problem occurs again.) I tried safe mode. I have found that Firefox will work if I select Windows XP compatibility mode from the icon properties menu or if I run the program as an administrator. When I do this, Windows asks me if I want a program to be able to make changes to my computer.
I have noticed that a Windows Error Report is being generated each time Firefox will not open.

A possible cause is security software (firewall,anti-virus) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.
Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.
See:
*https://support.mozilla.org/kb/Server+not+found
*https://support.mozilla.org/kb/Firewalls

MIME type issue in version 4.1/4.2 Compatibility Mode

Problem: when displaying a PDF file, it displays OK as PDF if APEX 'Compatability Mode' = 'Pre 4.1', but displays as HTML when in either '4.1' or '4.2' mode.
Apex: 4.2.2.00.11
DB: 11gr2
Web server: Apache on Linux
More detailed description... this seems to be a MIME type issue related to APEX (or maybe DB) versioning. The following code works as expected when run in 'Pre 4.1' mode - ie. it displays an appropriate PDF document in the appropriate Acrobat/other plugin in several browsers (Firefox/Opera/Chrome/IE). But just by changing 'Compatability Mode' to '4.2' (or even '4.1'), it then downloads the file but displays it as a bunch of random characters, and the web page header MIME type is 'text/HTML'.
Note: this also happens with other file types such as xls/doc/etc, but I expect fixing PDF should also fix these.
I'm at a bit of a loss as to where this is happening, it seems there is a difference in the 'Compatibility Modes' between either the creating of the HTML header using 'OWA_UTIL.mime_header' or the component path it traverses before reaching apache.
The only other thing I could think of is that we do a bit of redirection to display the PDF, though this seems like it might be a red herring. Basically we use page 560 as a container, and then display the PDF with page 561 within a frame embeded within page 560. So, on the page 560, which is the one we reference throughout the application, we have a region with a source of '<iframe src=?p=&APP_ID.:561:&SESSION.height="500" width="700"&gt</iframe&gt</pre>'. Then on page 561, in a 'On Load - Before Header' process, we make the call to the code 'DOWNLOAD_APPLICANT_PDF' (below).
Note: I did try calling 'apex_application.stop_apex_engine' after 'DOWNLOAD_APPLICANT_PDF', as suggested in a couple threads, but it didn't fix the problem, and caused a couple low-level system errors.
Code:
<pre>
CREATE OR REPLACE PROCEDURE DOWNLOAD_APPLICANT_PDF ( p_doc_id IN   NUMBER
   AS
      v_length      NUMBER;
      lob_loc       BLOB;
      l_display_inline   CHAR := '1';
   BEGIN
      SELECT pdf_data, DBMS_LOB.getlength (pdf_data)
        INTO lob_loc, v_length
        FROM pdf_dest
       WHERE pdf_dest_id = p_doc_id;
      OWA_UTIL.mime_header ('application/pdf', FALSE);
      HTP.p ('Content-length: ' || v_length);
      HTP.p ('Content-Disposition:inline;filename="mydoc.pdf"');
      OWA_UTIL.http_header_close;
      WPG_DOCLOAD.download_file (lob_loc);
END;
</pre>

Hi,
for some background information about the above changed behavior, have a look at 4.2 Before Header Processes and Browser Security HTTP Headers of the APEX 4.1. release notes.
Regards
Patrick
Member of the APEX development team
My Blog: http://www.inside-oracle-apex.com
APEX Plug-Ins: http://apex.oracle.com/plugins
Twitter: http://www.twitter.com/patrickwolf

Bing Maps on IE 11 browser, The mouse click event is only working when we have compatibility mode on.

I have tried out the code in this article in ASP.Net web forms with c# and javascript.
I am using Ajax to call the C# from Javascript and load the data from database.
I have used following article to show the pushpins and there infoboxes.
http://blogs.msdn.com/b/rbrundritt/archive/2013/11/08/multiple-pushpins-and-infoboxes-in-bing-maps-v7.aspx?CommentPosted=true#commentmessage
My code works great on IE 11 , when I have compatibility mode on,
but when compatibility mode is off, the mouse click event is not being received by the Javascript function.
Is this expected behavior of bing maps, Are there any workarounds for this problem?
Thanks
Nate

Hi Ricky, I have tried using Chrome and I see the same issue. The mouse events are not being captured.
Here is my code
<%@ Page Title="" Language="C#" MasterPageFile="~/Maps.Master" AutoEventWireup="true" CodeBehind="BingMaps.aspx.cs" Inherits="MyMaps.secure.BingMaps" %>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolderBody" runat="server" >
<asp:ScriptManager ID="ScriptManager" runat="server"
EnablePageMethods="true" />
<div id="MapHolder" style="; width:1000px; height:800px; " />
<asp:Literal ID="Literal1" runat="server">
</asp:Literal>
</asp:Content>
<asp:Content ID="Content3" ContentPlaceHolderID="ScriptSection" runat="server">
<script type="text/javascript" src="http://ecn.dev.virtualearth.net/mapcontrol/mapcontrol.ashx?v=7.0">
</script>
<script type="text/javascript" >
var map = null, infobox, dataLayer;
$(document).ready(function () {
GetMap();
function GetMap() {
// Initialize the map
map = new Microsoft.Maps.Map(document.getElementById("MapHolder"),
{ credentials: "lincensekey", zoom: 2 });
dataLayer = new Microsoft.Maps.EntityCollection();
map.entities.push(dataLayer);
var infoboxLayer = new Microsoft.Maps.EntityCollection();
map.entities.push(infoboxLayer);
infobox = new Microsoft.Maps.Infobox(new Microsoft.Maps.Location(0, 0), { visible: false, offset: new Microsoft.Maps.Point(0, 20) });
infoboxLayer.push(infobox);
PageMethods.GetLocations(RequestCompletedCallback, RequestFailedCallback);
function AddData(MapPoints) {
for (var i = 0, len = MapPoints.length; i < len; ++i)
var pushpin = new Microsoft.Maps.Pushpin(new Microsoft.Maps.Location(parseFloat(MapPoints[i].lat),parseFloat(MapPoints[i].lon))
icon: MapPoints[i].group,
height: 50, width: 60, text: MapPoints[i].city
pushpin.Title = MapPoints[i].name;
pushpin.description = MapPoints[i].desc;
Microsoft.Maps.Events.addHandler(pushpin, 'click', displayInfobox);
dataLayer.push(pushpin);
function displayInfobox(e) {
if (e.targetType == 'pushpin') {
infobox.setLocation(e.target.getLocation());
infobox.setOptions({ visible: true, title: e.target.Title, description: e.target.description });
function RequestCompletedCallback(result) {
result = eval(result);
AddData(result);
function RequestFailedCallback(error) {
var stackTrace = error.get_stackTrace();
var message = error.get_message();
var statusCode = error.get_statusCode();
var exceptionType = error.get_exceptionType();
var timedout = error.get_timedOut();
alert("Stack Trace: " + stackTrace + "<br/>" +
"Service Error: " + message + "<br/>" +
"Status Code: " + statusCode + "<br/>" +
"Exception Type: " + exceptionType + "<br/>" +
"Timedout: " + timedout);

Compatibility mode lifecycle

Hi,
This is the first time I use this forum, but I have searched without finding the answer to my question (I realise it is probably out there somewhere).
I support a legacy product where early versions are not officially compatible with Server 2008 and Server 2008 R2 (not to mention Server 2012). Therefore,
one workaround that seems to work fine is to install the product using the compatibility mode, i.e.
before installation one right clicks install.exe/setup.exe, selects Properties and then for example Server 2003 SP2 under the Compatibility tab.
I know this can also be done after the software has been installed, i.e. to set the program to launch in compatibility mode.
Now to my question. Does anyone know when Microsoft will end support for Server 2003 compatibility mode? Is it the same date as when the Server 2003 support lifecycle
ends? Also, what implication does end of support for compatibility mode have in effect? I understand the implications of end of support for an Operating System (OS), but the Server 2003 compatibility mode is used on for example a Server 2008 OS which
will carry on being supported with security updates etc. I hope I am not sounding too confused here...
Many thanks in advance for any answer you may be able to give!
Best regards,
Mattias Johansson.

When I look on 2012 R2 the EXE compatibility mode selections go back to Windows 95 so I wouldn't be too worried about 2003. If the product has problems running then you'll likely need to get help from the vendor not Microsoft.
Regards, Dave Patrick ....
Microsoft Certified Professional
Microsoft MVP [Windows]
Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

How can i run the ie extension in compatibility mode

I have installed the IE extension but I need to view a web page in IE Compatibility Mode. Does anyone know how to do that? Thx in advance.

Maybe the extension's author can answer that. Usually there is a support link on the download page on the Add-ons site.
On another subject, the forum software detected your Firefox as version 15. Is that correct?
Version 15 is not secure; Mozilla discloses [https://www.mozilla.org/security/known-vulnerabilities/firefox.html security flaws] after each new release. Is something holding you back from upgrading to Firefox 26? Please let us know so we can suggest solutions or workarounds.
If Help > About Firefox shows Firefox 26.0, you may need to clear the preference that is misreporting your version number. See: [[Websites say that Firefox is outdated or incompatible even though it's the latest version]].

How to set Compatibility Mode for a single site in ie10

This question was originally posted on the Answers forum -
http://answers.microsoft.com/en-us/ie/forum/ie10-windows_7/how-to-set-compatibility-mode-for-a-single-site-in/187152e3-142a-4d96-8d1b-af82ef571eec
I am having problem with getting ie10 to set ie9 compatibility for a single site (sharepoint.contoso.com).
When I add this website in Compatibility View Settings (Alt > Tools > Compatibility View Settings > 'Add this Website') it adds the domain 'contoso.com' and not the individual website (sharepoint.contoso.com).
This cause other sites (www.contoso.com) to be configured to use compatibility mode. Because this is a separate site (different web server) to the site sharepoint.contoso.com (sharepoint 2010 server) we need different compatibility settings.
Using a different example to explain the issue -
Microsoft has three websites that are different websites created by different developers written in different programming languages and they only work with certain browsers.
microsoft.com (Website1 created by Developer1) - compatible with ie8/ie9/ie10
msdn.microsoft.com (Website2 created by Developer2) - compatible with ie8/ie9
technet.microsoft.com (Website3 website created by Developer3) - compatible only with ie10
The only thing the three website share is the URL contains 'microsoft.com'.
Marking 'msdn.microsoft.com' to run in compatibility mode affects the other 2 websites - mainly technet.microsoft.com which will not work now since it only runs in pure ie10 mode.
Should you be able to add an individual site to the compatibility list instead of all sites that have .microsoft.com in the URL? Am I missing a simple setting in the ie10?
As a workaround I am using the F12 Developer Tools to set the Browser Mode which temporary sets the compatibility mode. However this is not a nice solution to the end users at our organisation.

problem is not solved for non corporate environments...
You could start your own thread. Then if you got that answer and it was marked Answered you would have the ability to unmark it. The OP of this one seems satisfied. Also note that this is TechNet. Consumers can get help on Answers
forums.
Robert Aldwinckle
Oh! I wrote it wrong: I should have said: This is not solved for NON-AD environments. No demands what so ever to use Window 7/8 professional in a small corporation or on a big corporation with Island of smaller departments for example offshore.
The problem is that the thread is not "Answered" by the OP, its is marked answered by a moderator (and same moderator that did the answer) so no way of telling if the OP is satisfied.
But you are right in the fact that I am almost kidnapping the thread. But a complete answer would benefit all in this case I would presume.
Regards
/Aldus

Every time I start iTunes I get the message: "iTunes exec has been set to run in compatability mode for an older version of Windows. Turn off compatability mode for iTunes before you open it." How do I turn off the compatability mode?

Every time I start iTunes I get the message: "iTunes exec has been set to run in compatability mode for an older version of Windows. Turn off compatability mode for iTunes before you open it." How do I turn off the compatability mode? Particularly when I have to do it before I turn on iTunes.

Try the following document, only be sure that none of the boxes in the compatibility mode tab are checked (not just the compatibility mode box itself):
iTunes for Windows: How to turn off Compatibility Mode

Will Office Web Apps Server 2013 work with SharePoint 2013 sites hosted in SP2010 compatibility mode?

We are planning a upgrade of a SP2010 farm to 2013. There has been a bit of customization so we wish to run the old sites on the new SP2013 platform in SP2010 compatibility mode.
So my question is will Office Web Apps Server 2013 work with the old sites hosted in compatibility mode?
I found a similar query from March 2014 found here
http://sharepoint.stackexchange.com/questions/93101/office-web-apps-2010-running-on-sharepoint-2013-for-compatibility-mode-sites/116281#116281
Has there been an update released to resolve this
Cheers D

Hi ,
According to your description, my understanding is that you need to know whether Office Web Apps 2013 is working with SharePoint 2013 sites which is in SharePoint 2010 compatibility mode.
For my test, Office Web Apps 2013 with SharePoint 2013 sites which is in SharePoint 2010 compatibility mode is working fine.
Thanks,
Eric
Forum Support
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact
[email protected]
Eric Tao
TechNet Community Support

Getting error message that states itunesexe has been set to run in compatibilty mode for an older versions of windows for best results turn off compatibility mode for itunes before you open it .How do i turn off compatibility mode?

recieved error message that states" itunes exe has been set to run in compatibility mode for an older versions of windows for best results turn off compatibility mode for itunes before you open it. How do i access compatibility mode and turn it off ? Believe i have Windows 7.

Try the following document, only be sure that none of the boxes in the compatibility tab are checked (not just the compatibility mode box itself):
iTunes for Windows: How to turn off Compatibility Mode

As a follow up from my recent question, I turned off the compatibility mode under all and regular, clicked out ok, ok then then went to itunes and played a song as they said to, and then tried to open the store and STILL CANNOT OPEN STORE, please Help!!!

Turning off the compatibility mode by deselecting the check box under each thing that it wants did nothing for my access to the itunes store, still a white page with "itunes store" in the middle of it. This is getting rediculous! Someone with computer smarts please help, I am at the end of my rope!

Close your iTunes,
Go to command Prompt -
(Win 7/Vista) - START/ALL PROGRAMS/ACCESSORIES, right mouse click "Command Prompt", choose "Run as Administrator".
(Win XP SP2 n above) - START/ALL PROGRAMS/ACCESSORIES/Command Prompt
In the "Command Prompt" screen, type in
netsh winsock reset
Hit "ENTER" key
Restart your computer.
If you do get a prompt after restart windows to remap LSP, just click NO.
Now launch your iTunes and see if it is working now.
If you are still having these type of problems after trying the winsock reset, refer to this article to identify which software in your system is inserting LSP:
iTunes 10.5 for Windows: May see performance issues and blank iTunes Store
http://support.apple.com/kb/TS4123?viewlocale=en_US

TS3299 opticals drive disappeared in my Windows 8 computer. After 1-1/2 on the phone this was corrected but now my Itunes don't recognize the drive. Error message stating registry errors. I tried running in windows 7 compatibility mode that don't

Purchased a new Ipad for my wife and integrated it with my windows 7 system and Itunes and made it through. Was able to sync and bring pictures, contacts and bookmarks over. Not to say it was easy because I never used any Apple product except my Ipad and Itunes. Really enjoyed using the Ipad and was thinking of getting a new Iphone this week being my contract is up.
Then the trouble began I bought a new windows 8 system after having trouble with my old hard drive. I have finances and Tax programs I use that I thought would be easier to continue using windows rather than trying integrating past years Quicken & Turbo Tax information into a new Apple system.
Well now I'm sorry I bought the new windows 8 system. First all my optical drives disappeared when installing itunes. After spending 1-1/2 on the phone with a service rep and finally was able to see my optical drive I thought everything was OK. Then more trouble. When I open Itunes I receive an error message that says my Itunes no longer recognizes my optical drive try reinstalling. I reinstalled 10 times and tried compatibility mode and the end result is my Itunes no longer could burn Cd's. I had this problem if I'm not mistaken in the past with ME system back many years ago. And did not want to go through this again but here I am disgusted once again.

I finally got my nano working (no thanks to Apple, hmpf!) and it's running fine with 1.0.2 now. For those with similiar problems try this:
+For Mac, you need to:+
+1. Downgrade to firmware 1.0.1 by deleting the files iPod_26.1.0.2.ipsw and iPod_26.1.0.2.ipsw.signature (are in the folder iPod software updates somewhere on the harddisk)+
+2. under Settings in iTunes you have to disable automatic download of updates, then restart iTunes.+
+3. Enter Disc Mode by holding menu & select for about ten seconds, then pressing play/pause & select for another ten seconds.+
+4. reconnect your nano to Reset, and when iTunes prompts to update, just don't allow it to look for updates and then reset with fw 1.0.1.+
I'm supriced Apple support didn't tell me about this? This worked great and is a very fast fix. I can't believe Apple got me to reinstall the whole OS, which didn't even solve it btw. USB 1, blah! Yeah right..
Message was edited by: swingindh

Firefox will not run after System restore or running in compatibility mode for windows 98. How do I fix this? I already tried all other solutions on this site.

I was running Firefox fine just yesterday. I screwed up the registry a litle while removing an installed program completely, so I restored the system and everything appeared to work fine. I then decided to play an old video game, Return to Krondor, which was made back in 1998, so I ran the program with no other programs running in compatibility for windows 98. After finishing the game, I closed it and put the computer in hibernation mode. I come back today and firefox will not run at all. It is not running in the background and there are no programs running. There are no services running which could interfere with it. I think somehow Firefox may think I'm in compatibility mode still, but I have no idea.
I'm running windows Vista 32 - bit with an AMD 2.4ghz processor, 4gb ram on an Emachine computer. I have already tried system restore, restart, processes etc. Nothing works. I can still run Internet explorer and all other programs.

The person that I was assisting, has Windows 7 which has 64 bit system. Her browser was IE 10.
Was IE11 ever offered (or installed) via Windows Update?
Is her computer currently fully-patched at Windows Update?
Is Adobe Shockwave Player v12.1 (or higher) installed on her computer?
Is Adobe Flash Player v15.0.0.189 (or higher) installed on her computer?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Troubleshoot Shockwave Player installation for Windows
http://kb2.adobe.com/cps/403/kb403264.html
You will find support for Shockwave Player in this forum:
http://forums.adobe.com/community/webplayers/webplayers_shockwave
~Robear Dyer (PA Bear) MS MVP-Windows Client since 2002 Disclaimer: MS MVPs neither represent nor work for Microsoft

Office 2013 freezing when running in compatibility mode.

When a 1997-2003 doc is opened in Office 2003 it opens in compatibility mode and causes lock ups/delays. This issue is replicated with a network and local copy of the file to negate issues on comms side. No memory/processing spikes, occuring. Uninstalled/deleted
reg keys/reinstalled, issue remains. All updates and up to date drivers installed. Is this a common fault/something you guys have dealt with before?
I have left our client with a workaround in the form of converting the file to the new file format, however, this particular user has vast amounts of 1997-2003 docs so a fix is highly prefereable.

you can refer to this, check if works
http://answers.microsoft.com/en-us/office/forum/office_2013_release-word/office-2013-stopped-working/a64b2db2-274c-4b9e-9cc8-1f1b86dd0cb4

How to get compatibility mode or notify ff browser of HTML4

I manage an old but large and constantly changing commercial website. The site was originally done in HTML2 and has long been at HTML4, with no plans yet to move to HTML5, which would break huge amounts of code using <font> tags, etc.
I use <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd"> at the top of the files, and it works fine with the latest Explorer in compatibility mode, but less well with other browsers, such as FF, where font sizes and colors, etc. are glitching.
Is there a way to force FF into the equivalent of IE's compatibility mode? Or to tell FF in the header to function as an HTML4 browser?

What does the validator say about your site's markup and CSS?
* http://validator.w3.org
* http://jigsaw.w3.org/css-validator/
You can trigger Quirks Mode rendering by omitting the DOCTYPE.
* https://developer.mozilla.org/docs/Quirks_Mode_and_Standards_Mode
You really shouldn't have any issues "upgrading" to HTML5 if you don't use antiquated presentation tags like <nowikI><font></nowikI> and <nowikI><center></nowiki>.
* [https://rawgit.com/whatwg/html-differences/master/Overview.html#obsolete-elements Differences from HTML4 - obsolete elements and attributes]
* https://developer.mozilla.org/docs/Web/CSS

6.1 to 7.0 compatability mode security exception

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