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Fix error with formatWebpackMessages trimming warnings #4656

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18 changes: 17 additions & 1 deletion packages/react-dev-utils/formatWebpackMessages.js
Original file line number Diff line number Diff line change
Expand Up @@ -26,8 +26,24 @@ function isLikelyASyntaxError(message) {
function formatMessage(message, isError) {
var lines = message.split('\n');

// Remove the useless Module Warning or Module Error message webpack sometimes outputs,
// it interferes with the thread loader stack clipping of the next few lines
if (
lines.length > 2 &&
(lines[1].indexOf('Module Warning') !== -1 ||
lines[1].indexOf('Module Error') !== -1 ||
/thread.loader/i.test(lines[1]))
) {
lines.splice(1, 1);
}

// Remove other thread-loader noise
if (lines.length > 2 && /thread.loader/i.test(lines[1])) {
lines.splice(1, 1);
}

// Remove extra newline.
if (lines.length > 2 && lines[1] === '') {
// Remove extra newline.
lines.splice(1, 1);
}

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