Allow Explicit Specification whether the environment is Node or Browser

[geo-systems]

Is your feature request related to a problem? Please describe.

I'm working on an Electron app. In Electron, each window has access to both the Node JS API and the web view API (e.g. the global window and window.document variables are defined).

Currently, tesseract.js checks if it's running in a browser and if so it treats all configuration paths as URLs - see here. I would like to force tesseract.js to work in "Node mode" and to treat the configuration paths as file paths.

Describe the solution you'd like

When initialising tesseract.js workers, add a new property to specify whether you're working in browser or Node js mode. This property can be optional - if it's not present then use the current logic.

[jeromewu]

Hi,
Instead of adding an explicit environment type assignment, I have added electron environment check in getEnvironment() which should fix the issue.

[jeromewu]

BTW, here is a repo for your reference: https://github.com/jeromewu/tesseract.js-electron