This condition only exists to avoid breaking certain old code written with very old/depreciated versions of Tesseract.js. It is not intended to trigger for new code, and may be removed entirely in a future version.

The corePath argument should be set to a directory that contains all 4 builds from the Tesseract.js-core package. This is explained in the docs here. This is critical if you plan on deploying Tesseract.js in the real world. Some builds are much larger and/or slower, however others only run with certain devices/settings, so Tesseract.js needs to be able to pick the correct build.