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.
The IDBMutableFile
interface provides access in read or write mode to a file, dealing with all the necessary locks.
Note: This interface used to be called FileHandle
, but it was changed to this (bug 1006485.)
As IDBMutableFile
objects are bound to a fake file system built on top of IndexedDB, such an object is created using the IDBDatabase.createMutableFile
method.
This feature is not part of any current specification. It is no longer on track to become a standard.