mirror of https://github.com/keeweb/keeweb.git
42 lines
1.1 KiB
JavaScript
42 lines
1.1 KiB
JavaScript
import { Features } from 'util/features';
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const FeatureTester = {
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test() {
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return Promise.resolve()
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.then(() => this.checkWebAssembly())
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.then(() => this.checkLocalStorage())
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.then(() => this.checkWebCrypto());
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},
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checkWebAssembly() {
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try {
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const module = new global.WebAssembly.Module(
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Uint8Array.of(0x0, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00)
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);
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return new global.WebAssembly.Instance(module) instanceof global.WebAssembly.Instance;
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} catch (e) {
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throw 'WebAssembly is not supported';
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}
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},
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checkLocalStorage() {
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if (Features.isDesktop) {
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return;
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}
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try {
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localStorage.setItem('_test', '1');
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localStorage.removeItem('_test');
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} catch (e) {
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throw 'LocalStorage is not supported';
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}
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},
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checkWebCrypto() {
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if (!global.crypto.subtle) {
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throw 'WebCrypto is not supported';
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}
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}
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};
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export { FeatureTester };
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