Amazon patents 404 pages
File this one under the “you’ve got to be kidding me” category. Amazon patent number 7,325,045 abstract says:
A client component runs on a user computer in conjunction with a web browser and detects errors, such as but not limited to “404: page not found” errors, in which a requested web page or other object cannot be displayed. In response to detecting the error, the client component notifies an error processing server, which uses the URL of the failed request to identify an alternate object to display. The alternate object may, for example, be (a) an object retrieved from replacement URL, or from a URL that is otherwise related to the requested object, (b) a cached version of the requested object, (c) an object retrieved from a closely matching URL found in the user’s clickstream history, or (d) a dynamically generated page that includes links to one or more of the foregoing types of alternate objects. Also disclosed are methods for identifying alternate objects for a given URL.
So in a nutshell they are saying they are patenting any means of processing an error. Whether that is showing you an alternate page from some means of lookup. In other words, if you do any kind of logical error processing for your site you would be infringing on their patent. How nice.
The patent can be seen here.
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