There is no standard around how browser JavaScript stack traces are formatted even within the same browser family. This makes it challenging for developers to debug issues when using minified or transpiled code, as the lack of whitespace and shortened symbol names can lead to unclear error messages and difficult-to-debug situations. Source maps have been developed to address this issue, allowing developers to map transpiled source code back to their original source, but they require three pieces of information (filename, line number, and column number) to be useful. The process of debugging issues with browser JavaScript errors can be complex and requires careful consideration of regular expressions, browser evolution, and feature detection.