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KNOWN_LIMITATIONS.md
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**Known limitations** * Mobile Detect script was designed to detect `mobile` devices. Implicitly other devices are considered to be `desktop`. * User-Agent and HTTP headers sniffing is a non-reliable method of detecting a mobile device. * If the mobile browser is set on `Desktop mode`, the Mobile Detect script has no indicator (eg. a group of strings) that would allow it to detect that the device is `mobile`. * Ipad 2019 is being recognized as a desktop because of Safari's default `Request Desktop Website` setting. See details and possible workaround [#820](https://github.com/serbanghita/Mobile-Detect/issues/820) * Also see [#886](https://github.com/serbanghita/Mobile-Detect/issues/886#issuecomment-1047187763) * Some touchscreen devices (eg. Microsoft Surface) are tough to detect as mobile since they can be used in a laptop mode. See: [#32](https://github.com/serbanghita/Mobile-Detect/issues/32), [#461](https://github.com/serbanghita/Mobile-Detect/issues/461), [#667](https://github.com/serbanghita/Mobile-Detect/issues/667) * Some mobile devices (eg. IPadOS, Google Pixel Slate). See: [#795](https://github.com/serbanghita/Mobile-Detect/issues/795), [#788](https://github.com/serbanghita/Mobile-Detect/issues/788) * Detecting the device brand (eg. Apple, Samsung, HTC) is not 100% reliable. * We don't monitor the quality of the 3rd party tools based on Mobile Detect script. We cannot guarantee that they are using the class properly or if they provide the latest version. * Version `2.x` is made to be PHP 5.3 compatible because of the backward compatibility changes of PHP. * There are hundreds of devices launched every month, we cannot keep a 100% up-to-date detection rate. * The script cannot detect the viewport, pixel density or resolution of the screen since it's running server-side.