DevTools failed to load source map: Could not load content for file:///.../github/iancoleman/bip39/bootstrap.css.map: System error: net::ERR_FILE_NOT_FOUND

[petjal]

I see the subject error in Google Chrome Dev Tools when loading iancoleman/bip39/bip39-standalone.html file into Google Chrome. I was expecting the standalone file to not touch any other file in any way. Maybe Chrome DevTools is being too aggressive?

.../iancoleman/bip39 $ grep "\.css\." bip39-standalone.html | cut -c 1-200
/*# sourceMappingURL=bootstrap.css.map */</style>