Managing SharePoint 2013 App Context

Basic Contextual Information

Key
Description
AppQueryString
This is the complete encoded query string stripped from the launch URL. This can be attached to subsequent URL links to maintain context if the current browser does not support Session Storage.
BaseContextStatus
A message indicating the status of the context. Possible values are “undefined”, “success”, or a serialized JSON error object.
ContextCreated
The timestamp when the current context was created.
ContextModified
The timestamp when the current contextual information was modified.
SenderId
The identifier used when requesting an App Part resize with postMessage.
SessionStorageSupport
A Boolean value indicating if the current browser supports HTML5 Session Storage.
SiteFullUrl
The Full URL of the Site Collection hosting the app.
SPAppWebUrl
The decoded value of the SPAppWebURL query string parameter.
SPClientTag
The decoded value of the SPClientTag query string parameter.
SPLanguage
The decoded value of the SPLanguage query string parameter.
SPLibraryVersion
The decoded value of the SPLibraryVersion query string parameter.
SPHostUrl
The decoded value of the SPHostUrl query string parameter.
SPProductNumber
The decoded value of the SPProductNumber query string parameter.
FormDigest
The value of the FormDigest for use with list item updates.
FormDigestTimeout
The lifetime of the FormDigest in milliseconds.
FormDigestValid
A Boolean value indicating if the current FormDigest is valid. A setTimeout function is used to invalidate the FormDigest based on the value in the FormDigestTimeout property.
WebFullUrl
The Full URL of the App Web.

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