1
0
mirror of https://github.com/kremalicious/metamask-extension.git synced 2024-11-24 02:58:09 +01:00
metamask-extension/app/scripts/lib/setupFetchDebugging.js
2018-10-15 01:14:25 -04:00

35 lines
909 B
JavaScript

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) {
console.warn('FetchDebugger - fetch encountered an Error', 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
}
}