[Required] false [Type] ECMAScript Expression [Default Value] none [Valid Values] An ECMAScript expression which returns a valid time value for the HTTP 1.1 request [RFC2616] [Description] The character string returned must be interpreted as a time interval. This indicates that the document is willing to use content that has exceeded its expiration time (cf. 'max-age' in HTTP 1.1 [RFC2616] ). If maxstale is assigned a value, then the document is willing to accept content that has exceeded its expiration time by no more than the specified number of seconds. [Name] 
maxstale
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m e t h o d
f e t c h i d
t i m e o u t
m a x a g e
m a x s t a l e
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m o d e