opened
megos
username_0
*Note*: the `engine.io.js` file is the generated output of `make engine.io.js`, and should not be manually modified.

### The kind of change this PR does introduce

* [ ] a bug fix
* [ ] a new feature
* [ ] an update to the documentation
* [ ] a code change that improves performance
* [x] other

### Current behaviour
Transpile to ES5 using bundler like webpack leaves ES6 code.

### New behaviour
Bundler will try to resolve using the transpiled ES5 file.

### Other information (e.g. related issues)
N/A
[fix] Use transpiled js for browser
issue
created
darrachequesne
username_1
@username_0 sorry for the delay. won't that result in duplicated code in the final bundle? For example:

```
myproject
├── component-emitter
├─┬ engine.io-client
  └── component-emitter
```
comment
created
megos
username_0
@username_1  
Thank you for your response.
Yes, that is correct. And the publish method different depending on the library. For example, ES5, ES6, transpile, minify and etc.  
The original reason is that I wanted to use this library in IE11, it seems to be fixed v3.4.2 :)
comment