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41 lines
1012 B
41 lines
1012 B
//
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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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export default function setupFetchDebugging() {
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if (!window.fetch) {
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return;
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}
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const originalFetch = window.fetch;
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window.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(
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'FetchDebugger - fetch encountered an Error without a stack',
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err,
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);
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console.warn(
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'FetchDebugger - overriding stack to point of original call',
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);
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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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