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AMD define factory patcher webpack loader

Adds support for non-standard AMD define statements with optional factory to webpack.


According to the AMD specification, the factory argument is not optional. Unfortunately, some AMD loaders such as RequireJS differ from the specification. This has resulted in some libraries depending on the non-standard feature, creating problem code like this.


This webpack loader can be used to preprocess those problem files and add an empty factory function so that the code can be processed correctly. After being passed through this loader, the problem code will be transformed to look like this.

define(['./some-file'], function() {


npm install amd-define-factory-patcher-loader


Add a loader directive to match the file(s) you need to patch. The following is an example webpack.config.js configuration that will match a file path ending in path/to/problem/file.js.

module.exports = {
    entry: './entry',
    output: {
        filename: 'bundle.js'
    module: {
        loaders: [
            { test: /path\/to\/problem\/file\.js$/, loader: 'amd-define-factory-patcher-loader' }

To avoid causing issues in spec-compliant libraries, make sure you only target files that have this problem.


If you find a bug or have compatibility issues, please open a ticket under the issues section for this repository.



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