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Cloudapp.net domains do not allow the setting of a cookie.

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Webtrends Analytics

Cause

Cloudapp.net domains do not allow the setting of a cookie when using the Chrome browser. This is a feature of the Chrome browser and cannot be overridden by Webtrends tagging.

One reason is browsers like Chrome use the Public Suffix List (https://publicsuffix.org/list/effective_tld_names.dat) to restrict certain cookies. If the domain suffix set on the cookie is shared publicly then the browser may block such a cookie in order to prevent itself from sending “unauthorized” data to other servers running on the same domain. Note that cloudapp.net domain is there in the Public Suffix list.