Conformance

Document conventions

Conformance requirements are expressed with a combination of descriptive assertions and RFC 2119 terminology. The key words “MUST”, “MUST NOT”, “REQUIRED”, “SHALL”, “SHALL NOT”, “SHOULD”, “SHOULD NOT”, “RECOMMENDED”, “MAY”, and “OPTIONAL” in the normative parts of this document are to be interpreted as described in RFC 2119. However, for readability, these words do not appear in all uppercase letters in this specification.

All of the text of this specification is normative except sections explicitly marked as non-normative, examples, and notes. [RFC2119]

Examples in this specification are introduced with the words “for example” or are set apart from the normative text with class="example", like this:

This is an example of an informative example.

Informative notes begin with the word “Note” and are set apart from the normative text with class="note", like this:

Note, this is an informative note.

Conformant Algorithms

Requirements phrased in the imperative as part of algorithms (such as “strip any leading space characters” or “return false and abort these steps”) are to be interpreted with the meaning of the key word (“must”, “should”, “may”, etc) used in introducing the algorithm.

Conformance requirements phrased as algorithms or specific steps can be implemented in any manner, so long as the end result is equivalent. In particular, the algorithms defined in this specification are intended to be easy to understand and are not intended to be performant. Implementers are encouraged to optimize.

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✔MDN

IDBCursor/advance

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Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for AndroidYesAndroid WebViewYesSamsung InternetYesOpera Mobile14+

✔MDN

IDBCursor/continue

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✔MDN

IDBCursor/continuePrimaryKey

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Firefox51+Safari10.1+Chrome58+

Opera45+Edge79+

Edge (Legacy)NoneIE?

Firefox for Android51+iOS Safari10.3+Chrome for Android58+Android WebView58+Samsung Internet7.0+Opera Mobile43+

✔MDN

IDBCursor/delete

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IDBCursor/direction

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IDBCursor/key

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IDBCursor/primaryKey

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IDBCursor/request

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IDBCursor/source

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Firefox for Android22+iOS Safari8+Chrome for AndroidYesAndroid WebViewYesSamsung InternetYesOpera Mobile14+

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IDBCursor/update

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IDBCursor

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IDBCursorWithValue/value

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IDBDatabase

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IDBCursorWithValue

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IDBDatabase/close

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IDBDatabase/createObjectStore

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IDBDatabase/deleteObjectStore

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IDBDatabase/name

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IDBDatabase/objectStoreNames

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IDBDatabase/onabort

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IDBDatabase/onclose

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Firefox50+Safari10.1+Chrome31+

OperaYesEdge79+

Edge (Legacy)18IE?

Firefox for Android50+iOS Safari10.3+Chrome for Android31+Android WebViewYesSamsung Internet2.0+Opera MobileYes

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IDBDatabase/onerror

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IDBDatabase/onversionchange

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IDBDatabase/transaction

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IDBDatabase/version

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IDBFactory/cmp

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⚠MDN

IDBFactory/databases

In only one current engine.

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Firefox for AndroidNoneiOS SafariNoneChrome for Android71+Android WebView71+Samsung Internet10.0+Opera MobileYes

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IDBFactory/deleteDatabase

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IDBFactory/open

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✔MDN

IDBFactory

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✔MDN

IDBIndex/count

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✔MDN

IDBIndex/getAll

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Firefox44+Safari10.1+Chrome48+

Opera35+Edge79+

Edge (Legacy)18IENone

Firefox for Android44+iOS Safari10.3+Chrome for Android48+Android WebView48+Samsung Internet5.0+Opera Mobile35+

✔MDN

IDBIndex/getAllKeys

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IDBIndex/getAllKeys

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Opera35+Edge79+

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✔MDN

IDBIndex/getKey

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✔MDN

IDBIndex/keyPath

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✔MDN

IDBIndex/multiEntry

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✔MDN

IDBIndex/name

In all current engines.

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Opera15+Edge79+

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Firefox for Android22+iOS Safari8+Chrome for Android25+Android WebViewYesSamsung Internet1.5+Opera Mobile14+

✔MDN

IDBIndex/objectStore

In all current engines.

Firefox16+Safari7+Chrome24+

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Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for Android25+Android WebViewYesSamsung Internet1.5+Opera Mobile14+

✔MDN

IDBIndex/openCursor

In all current engines.

Firefox16+Safari7+Chrome24+

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Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for Android25+Android WebViewYesSamsung Internet1.5+Opera Mobile14+

✔MDN

IDBIndex/openKeyCursor

In all current engines.

Firefox16+Safari7+Chrome24+

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Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for Android25+Android WebViewYesSamsung Internet1.5+Opera Mobile14+

✔MDN

IDBIndex/unique

In all current engines.

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✔MDN

IDBIndex

In all current engines.

Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for Android25+Android WebViewYesSamsung Internet1.5+Opera Mobile14+

✔MDN

IDBKeyRange/bound

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Firefox16+Safari7+Chrome24+

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Firefox for Android22+iOS Safari8+Chrome for AndroidYesAndroid WebViewYesSamsung InternetYesOpera Mobile14+

✔MDN

IDBKeyRange/includes

In all current engines.

Firefox47+Safari10.1+Chrome52+

Opera39+Edge79+

Edge (Legacy)18IE?

Firefox for AndroidYesiOS Safari10.3+Chrome for Android52+Android WebView52+Samsung Internet6.0+Opera Mobile41+

IDBKeyRange/includes

In all current engines.

Firefox47+Safari10.1+Chrome52+

Opera39+Edge79+

Edge (Legacy)18IE?

Firefox for AndroidYesiOS Safari10.3+Chrome for Android52+Android WebView52+Samsung Internet6.0+Opera Mobile41+

✔MDN

IDBKeyRange/lower

In all current engines.

Firefox16+Safari7+Chrome24+

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Firefox for Android22+iOS Safari8+Chrome for AndroidYesAndroid WebViewYesSamsung InternetYesOpera Mobile14+

✔MDN

IDBKeyRange/lowerBound

In all current engines.

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✔MDN

IDBKeyRange/lowerOpen

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✔MDN

IDBKeyRange/only

In all current engines.

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✔MDN

IDBKeyRange/upper

In all current engines.

Firefox16+Safari7+Chrome24+

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Firefox for Android22+iOS Safari8+Chrome for AndroidYesAndroid WebViewYesSamsung InternetYesOpera Mobile14+

✔MDN

IDBKeyRange/upperBound

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Firefox16+Safari7+Chrome24+

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Firefox for Android22+iOS Safari8+Chrome for AndroidYesAndroid WebViewYesSamsung InternetYesOpera Mobile14+

✔MDN

IDBKeyRange/upperOpen

In all current engines.

Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for AndroidYesAndroid WebViewYesSamsung InternetYesOpera Mobile14+

✔MDN

IDBKeyRange

In all current engines.

Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for AndroidYesAndroid WebViewYesSamsung InternetYesOpera Mobile14+

✔MDN

IDBObjectStore/add

In all current engines.

Firefox16+Safari7+Chrome24+

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✔MDN

IDBObjectStore/autoIncrement

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✔MDN

IDBObjectStore/clear

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✔MDN

IDBObjectStore/count

In all current engines.

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Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for Android25+Android WebViewYesSamsung Internet1.5+Opera Mobile14+

✔MDN

IDBObjectStore/createIndex

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✔MDN

IDBObjectStore/delete

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✔MDN

IDBObjectStore/deleteIndex

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✔MDN

IDBObjectStore/get

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✔MDN

IDBObjectStore/getAll

In all current engines.

Firefox44+Safari10.1+Chrome48+

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Edge (Legacy)NoneIE?

Firefox for Android48+iOS Safari10.3+Chrome for Android48+Android WebView48+Samsung Internet5.0+Opera Mobile35+

✔MDN

IDBObjectStore/getAllKeys

In all current engines.

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Firefox for Android48+iOS Safari10.3+Chrome for Android48+Android WebView48+Samsung Internet5.0+Opera Mobile35+

✔MDN

IDBObjectStore/getKey

In all current engines.

Firefox51+Safari10.1+Chrome48+

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Firefox for Android58+iOS Safari10.3+Chrome for Android48+Android WebView48+Samsung Internet5.0+Opera Mobile43+

✔MDN

IDBObjectStore/index

In all current engines.

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✔MDN

IDBObjectStore/indexNames

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✔MDN

IDBObjectStore/keyPath

In all current engines.

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✔MDN

IDBObjectStore/name

In all current engines.

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✔MDN

IDBObjectStore/openCursor

In all current engines.

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✔MDN

IDBObjectStore/openKeyCursor

In all current engines.

Firefox🔰 44+Safari7+Chrome24+

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✔MDN

IDBObjectStore/put

In all current engines.

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✔MDN

IDBObjectStore/transaction

In all current engines.

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✔MDN

IDBObjectStore

In all current engines.

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✔MDN

IDBOpenDBRequest/onblocked

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✔MDN

IDBOpenDBRequest/onupgradeneeded

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✔MDN

IDBOpenDBRequest

In all current engines.

Firefox16+Safari7+Chrome24+

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✔MDN

IDBRequest/error

In all current engines.

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✔MDN

IDBRequest/onerror

In all current engines.

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✔MDN

IDBRequest/onsuccess

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✔MDN

IDBRequest/readyState

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✔MDN

IDBRequest/result

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✔MDN

IDBRequest/source

In all current engines.

Firefox16+Safari7+Chrome24+

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Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for AndroidYesAndroid WebViewYesSamsung InternetYesOpera Mobile14+

✔MDN

IDBRequest/transaction

In all current engines.

Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for AndroidYesAndroid WebViewYesSamsung InternetYesOpera Mobile14+

✔MDN

IDBRequest

In all current engines.

Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for Android25+Android WebViewYesSamsung Internet1.5+Opera Mobile14+

✔MDN

IDBTransaction/abort

In all current engines.

Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for AndroidYesAndroid WebViewYesSamsung InternetYesOpera Mobile14+

MDN

IDBTransaction/commit

Firefox74+SafariNoneChrome76+

Opera63+Edge79+

Edge (Legacy)NoneIENone

Firefox for AndroidNoneiOS SafariNoneChrome for Android76+Android WebView76+Samsung InternetNoneOpera Mobile54+

✔MDN

IDBTransaction/db

In all current engines.

Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for Android25+Android WebViewYesSamsung Internet1.5+Opera Mobile14+

✔MDN

IDBTransaction/error

In all current engines.

Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for Android25+Android WebViewYesSamsung Internet1.5+Opera Mobile14+

✔MDN

IDBTransaction/mode

In all current engines.

Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for AndroidYesAndroid WebViewYesSamsung InternetYesOpera Mobile14+

✔MDN

IDBTransaction/objectStore

In all current engines.

Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for AndroidYesAndroid WebViewYesSamsung InternetYesOpera Mobile14+

✔MDN

IDBTransaction/objectStoreNames

In all current engines.

FirefoxYesSafariYesChrome48+

Opera35+Edge79+

Edge (Legacy)NoneIE?

Firefox for AndroidYesiOS SafariYesChrome for Android48+Android WebView48+Samsung Internet5.0+Opera Mobile35+

✔MDN

IDBTransaction/onabort

In all current engines.

Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for AndroidYesAndroid WebViewYesSamsung InternetYesOpera Mobile14+

✔MDN

IDBTransaction/oncomplete

In all current engines.

Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for AndroidYesAndroid WebViewYesSamsung InternetYesOpera Mobile14+

✔MDN

IDBTransaction/onerror

In all current engines.

Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for AndroidYesAndroid WebViewYesSamsung InternetYesOpera Mobile14+

✔MDN

IDBTransaction

In all current engines.

Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for Android25+Android WebViewYesSamsung Internet1.5+Opera Mobile14+

✔MDN

IDBVersionChangeEvent/newVersion

In all current engines.

Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for Android25+Android WebViewYesSamsung Internet1.5+Opera Mobile14+

✔MDN

IDBVersionChangeEvent/oldVersion

In all current engines.

Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for Android25+Android WebViewYesSamsung Internet1.5+Opera Mobile14+

✔MDN

IDBVersionChangeEvent

In all current engines.

Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS SafariYesChrome for AndroidYesAndroid WebViewYesSamsung InternetYesOpera MobileYes

✔MDN

WindowOrWorkerGlobalScope/indexedDB

In all current engines.

Firefox16+Safari7+Chrome24+

Opera15+Edge79+

Edge (Legacy)12+IENone

Firefox for Android22+iOS Safari8+Chrome for Android25+Android WebViewYesSamsung Internet2.0+Opera Mobile14+