DOMException - Web APIs
dataerror provided data is inadequate (no legacy code value and constant name).
...adds the notreadableerror, unknownerror, constrainterror, dataerror, transactioninactiveerror, readonlyerror, versionerror, operationerror, and notallowederror values.

IDBCursor.continue() - Web APIs
dataerror the key parameter may have any of the following conditions: the key is not a valid key.

IDBCursor.continuePrimaryKey() - Web APIs
dataerror the key parameter may have any of the following conditions: the key is not a valid key.

IDBCursor.update() - Web APIs
dataerror the underlying object store uses in-line keys and the property in the value at the object store's key path does not match the key in this cursor's position.

IDBFactory.cmp() - Web APIs
the result of the comparison; the table below lists the possible values and their meanings: returned value description -1 1st key is less than the 2nd key 0 1st key is equal to the 2nd key 1 1st key is greater than the 2nd key exceptions this method may raise a domexception of the following types: attribute description dataerror one of the supplied keys was not a valid key.

IDBIndex.count() - Web APIs
dataerror the key or key range provided contains an invalid key.

IDBIndex.get() - Web APIs
dataerror the key or key range provided contains an invalid key.

IDBIndex.getKey() - Web APIs
dataerror the key or key range provided contains an invalid key.

IDBIndex.openCursor() - Web APIs
dataerror the key or key range provided contains an invalid key.

IDBIndex.openKeyCursor() - Web APIs
dataerror the key or key range provided contains an invalid key.

IDBKeyRange.bound() - Web APIs
exceptions this method may raise a domexception of the following type: exception description dataerror the following conditions raise an exception: the lower or upper parameters were not passed a valid key.

IDBKeyRange.includes() - Web APIs
exceptions this method may raise a domexception of the following type: attribute description dataerror the supplied key was not a valid key.

IDBKeyRange.lowerBound() - Web APIs
exceptions this method may raise a domexception of the following type: exception description dataerror the value parameter passed was not a valid key.

IDBKeyRange.only() - Web APIs
exceptions this method may raise a domexception of the following types: exception description dataerror the value parameter passed was not a valid key.

IDBKeyRange.upperBound() - Web APIs
exceptions this method may raise a domexception of the following type: exception description dataerror the value parameter passed was not a valid key.