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