"Loading chunk {some_module_name} failed." error

[maxlath]

This happens when the client fails to load a dynamically imported chunk, which can have several reasons:

• an existing browser tab had started a session when a new client build was released, and the files from the previous build were deleted, making the modules names known by that session obsolete
• a network error

Work-arounds:

• handle dynamic imports (see this comment): import('./chunk').then(doSomething).catch(retry).catch(showErrorMessage)
• ask the user to reload the page (see this comment)

see webpack issue: https://github.com/webpack/webpack/issues/7502