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Fix remove BOM #75

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Fix remove BOM #75

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9baa1cf
fix(removeBOM): updated the removeBOM method to actually remove the B…
Jun 18, 2025
0e8bf31
refactor(removeBOM): fix formatting issues
Jun 18, 2025
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29 changes: 21 additions & 8 deletions src/utils.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -47,14 +47,27 @@ export function addAlertsToList<T>(

export function removeBOM(chunk: string): string {
// strip utf-8 BOM: see https://en.wikipedia.org/wiki/Byte_order_mark#UTF-8
const dataBuffer = Buffer.from(chunk)
if (
dataBuffer.length > 2 &&
dataBuffer[0] === 0xef &&
dataBuffer[1] === 0xbb &&
dataBuffer[2] === 0xbf
) {
chunk = chunk.trimStart()
// Handle Buffer input
if (Buffer.isBuffer(chunk)) {
// Check for BOM in buffer
if (
chunk.length > 2 &&
chunk[0] === 0xef &&
chunk[1] === 0xbb &&
chunk[2] === 0xbf
) {
// Return buffer without BOM
return chunk.slice(3)
}

return chunk
}

// Check for BOM in string and remove if present
if (typeof chunk === "string" && chunk.charCodeAt(0) === 0xfeff) {
return chunk.substring(1)
}

// For any other type, return as is
return chunk
}