module.exports = setupFetchDebugging // // This is a utility to help resolve cases where `window.fetch` throws a // `TypeError: Failed to Fetch` without any stack or context for the request // https://github.com/getsentry/sentry-javascript/pull/1293 // function setupFetchDebugging () { if (!global.fetch) return const originalFetch = global.fetch global.fetch = wrappedFetch async function wrappedFetch (...args) { const initialStack = getCurrentStack() try { return await originalFetch.call(window, ...args) } catch (err) { if (!err.stack) { console.warn('FetchDebugger - fetch encountered an Error without a stack', err) console.warn('FetchDebugger - overriding stack to point of original call') err.stack = initialStack } throw err } } } function getCurrentStack () { try { throw new Error('Fake error for generating stack trace') } catch (err) { return err.stack } }