MacPro
44 lines
1.2 KiB
JavaScript
44 lines
1.2 KiB
JavaScript
const objectToString = Object.prototype.toString;
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const isError = value => objectToString.call(value) === '[object Error]';
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const errorMessages = new Set([
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'network error', // Chrome
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'Failed to fetch', // Chrome
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'NetworkError when attempting to fetch resource.', // Firefox
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'The Internet connection appears to be offline.', // Safari 16
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'Network request failed', // `cross-fetch`
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'fetch failed', // Undici (Node.js)
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'terminated', // Undici (Node.js)
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' A network error occurred.', // Bun (WebKit)
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'Network connection lost', // Cloudflare Workers (fetch)
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]);
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export default function isNetworkError(error) {
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const isValid = error
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&& isError(error)
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&& error.name === 'TypeError'
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&& typeof error.message === 'string';
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if (!isValid) {
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return false;
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}
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const {message, stack} = error;
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// Safari 17+ has generic message but no stack for network errors
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if (message === 'Load failed') {
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return stack === undefined
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// Sentry adds its own stack trace to the fetch error, so also check for that
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|| '__sentry_captured__' in error;
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}
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// Deno network errors start with specific text
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if (message.startsWith('error sending request for url')) {
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return true;
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}
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// Standard network error messages
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return errorMessages.has(message);
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}
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