Proprietary tags are used |
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Issue Description The page contains proprietary tags that are replaced by a web server by one or more HTML tags. As a result, it is not possible to check the accessibility of the original file. A thorough evaluation requires testing the final version of the page, which can be done by opening the page in a browser, saving it, and testing the saved version.
How to check Using a browser, request the page from the server. The page that opens in your browser should no longer contain any proprietary tags. Save the page using the browser's save command (in Microsoft Internet Explorer, choose File > Save As), then test the saved version for accessibility.
Issue Explanation Some web technologies such as ColdFusion use specialized tags to create specific kinds of information and behaviors. When the server receives a request for the page, the server replaces all the specialized tags with HTML, then sends the page to the user's browser. The page the user receives should no longer contain any proprietary tags. It may not be possible to check the accessibility of a page for the following reasons: The site may contain pages such as ColdFusion and ASP.NET pages that are dynamically created Local pages may be part of a larger site that need to be tested globally Local pages may contain special proprietary tags that are replaced by the web server before delivering the page to the user's browser For online pages, one can test also actual download times and server response times The server may deliver slightly different pages to different browsers Pages may contain links external to the website For these reasons, it is not always possible to completely check the accessibility of a page in its original state. You must test it in its final state.