Non-standard: This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

msCaching is a read/write property which specifies whether stream data downloaded using XMLHttpRequest is cached to disk or not. In compatible browsers, if msCaching is not disabled, then XMLHttpRequest instances will be cached to disk regardless of whether cache-control is set to no-cache.


One of the following strings:


The caching for stream or ms-stream data is disabled.


The caching for stream or ms-stream data is enabled.


The caching for any data is disabled.


This feature is not part of any current specification. It is no longer on track to become a standard.

Browser compatibility

This proprietary method is specific to Internet Explorer 11.

See also