I linked to the site article as a courtesy, and the site contains a number of other useful Bookmarklets. Note re the last link – a Bookmarklet is a link containing javascript which performs some action directly in the current page.
Article containing Bookmarklet to display current browser mode. I found the following sites useful when looking for information on this:. When using Facelets which is xhtml based, as detailed in this post here re ICEfaces, the actual DOCTYPE outputted by ICEfaces is as follows – this also works well when using standards mode with xhtml/facelets :. The following DOCTYPE corrected the problem and put IE8 into standards mode :. I was coding an html page which had the following DOCTYPE (which was auto generated by Topstyle 4), and which still threw IE8 into quirks mode :. The perceived wisdom is that adding a valid DOCTYPE switches a browser from quirks mode into standards mode, but the truth is that it depends on the DOCTYPE and the browser, and also can depend on how the browser validates the page against that DOCTYPE – the browser can potentially change its mind part way through parsing a page. Note that you cannot omit the tag and add the xmlns namespace declarations to the tag as this fails – the tag needs to be present.Īnother post about Quirks mode and DOCTYPE switching, which also contains a useful Bookmarklet (Javascript link) which will tell you directly what mode a page is running in, may be found here. Interestingly, a page created by ICEfaces for a JSP (non-facelet) project also uses the tag, presumably for the same reason. The issue is discussed and solved in this ICEfaces forum post. To do this, you also need to add an tag as you would in JSP mode, as in the following example :. 
The DOCTYPE can be added back by using the tag. When running IE without a suitable DOCTYPE directive, it switches into Quirks Mode and is not fully standards compliant, which may cause pages to display incorrectly.
Unfortunately, this is stripped out during processing/rendering and does not appear in the final HTML for the page. By default when you create a new ICEfaces Facelets project with a sample page, it codes the DOCTYPE directive directly.
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