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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,117 +1,15 @@ | ||
| # Browser support | ||
|
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| The library supports all popular browsers. | ||
| We use the following command to determine which browsers to support: | ||
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| ```bash | ||
| npx browserslist "cover 96% in us, not IE < 11" | ||
| ``` | ||
| We aim to cover at least 99% of all users according to the Fingerprint Pro statistics. | ||
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| At the moment, these browsers are: | ||
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| - **Internet Explorer** 11 ([see the section below](#old-browsers-requirements)) | ||
| - **Edge** 93+ | ||
| - **Chrome** 49+ | ||
| - **Firefox** 52+ | ||
| - **Edge** 105+ | ||
| - **Chrome** 57+ | ||
| - **Firefox** 67+ | ||
| - **Desktop Safari** 12.1+ | ||
| - **Mobile Safari** 10.3+ | ||
| - **Mobile Safari** 11.0+ | ||
| - **Samsung Internet** 14.0+ | ||
| - **Android Browser** 4.4+ ([see the section below](#old-browsers-requirements)) | ||
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| Other browsers will probably also work, but we don't guarantee it. | ||
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| ## Old browsers requirements | ||
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| ### `import()` support | ||
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| If you use the "Browser ECMAScript module" installation methods, you may have an error. | ||
| Old browsers don't support [import](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/import). | ||
| Replace it with a `<script>` tag: | ||
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| ```diff | ||
| + // Note that we use iife.min.js with older browsers | ||
| + <script src="https://openfpcdn.io/fingerprintjs/v3/iife.min.js"></script> | ||
| <script> | ||
| - const fpPromise = import('https://openfpcdn.io/fingerprintjs/v3') | ||
| - .then(FingerprintJS => FingerprintJS.load()) | ||
| + var fpPromise = FingerprintJS.load() | ||
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| // ... | ||
| </script> | ||
| ``` | ||
|
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| ### Polyfills | ||
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| Very old browsers like Internet Explorer 11 and Android Browser 4.4 | ||
| require a [Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) polyfill to work. | ||
| Add a Promise polyfill before loading the FingerprintJS agent. | ||
| Examples for various installation methods: | ||
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| #### Script tag | ||
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| ```diff | ||
| + <script src="https://cdn.jsdelivr.net/npm/promise-polyfill@8/dist/polyfill.min.js"></script> | ||
| <script src="https://openfpcdn.io/fingerprintjs/v3/iife.min.js"></script> | ||
| <script> | ||
| var fpPromise = FingerprintJS.load() | ||
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| // ... | ||
| </script> | ||
| ``` | ||
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| #### UMD | ||
|
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| ```diff | ||
| require( | ||
| [ | ||
| 'https://openfpcdn.io/fingerprintjs/v3/umd.min.js', | ||
| + 'https://cdn.jsdelivr.net/npm/promise-polyfill@8/dist/polyfill.min.js', | ||
| ], | ||
| function (FingerprintJS) { | ||
| // ... | ||
| } | ||
| ) | ||
| ``` | ||
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| #### Webpack/Rollup/NPM/Yarn | ||
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| ```bash | ||
| # Install the polyfill package first: | ||
| npm i promise-polyfill | ||
| # or | ||
| yarn add promise-polyfill | ||
| ``` | ||
|
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| ```diff | ||
| + import 'promise-polyfill/src/polyfill' | ||
| import FingerprintJS from '@fingerprintjs/fingerprintjs' | ||
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| // ... | ||
| ``` | ||
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| An outdated CommonJS syntax: | ||
|
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| ```diff | ||
| + require('promise-polyfill/src/polyfill') | ||
| const FingerprintJS = require('@fingerprintjs/fingerprintjs') | ||
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| // ... | ||
| ``` | ||
|
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| ### Code syntax | ||
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| Old browsers like IE11 don't support `const`, `let` and arrow functions (`=>`). | ||
| Use `var` and the classic function syntax instead: | ||
|
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| ```diff | ||
| - const fpPromise = FingerprintJS.load() | ||
| + var fpPromise = FingerprintJS.load() | ||
|
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| fpPromise | ||
| - .then(fp => fp.get()) | ||
| + .then(function (fp) { return fp.get() }) | ||
| - .then(result => { | ||
| + .then(function (result) { | ||
| // Handle the result | ||
| }) | ||
| ``` |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,10 +1,9 @@ | ||
| import { isEdgeHTML, isTrident } from '../../tests/utils' | ||
| import getIndexedDB from './indexed_db' | ||
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| describe('Sources', () => { | ||
| describe('indexedDB', () => { | ||
| it('returns boolean or undefined depending on the browser', () => { | ||
| expect(typeof getIndexedDB()).toBe(isTrident() || isEdgeHTML() ? 'undefined' : 'boolean') | ||
| expect(getIndexedDB()).toBeInstanceOf(Boolean) | ||
| }) | ||
| }) | ||
| }) |
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