Anyone encountered issues where DCE seemingly removes something vital? I'm getting `Uncaught TypeErr...

# javascript

[Big Chungus]

Anyone encountered issues where DCE seemingly removes something vital? I'm getting Uncaught TypeError: g is not a function after running dce on my page. Any suggestions how to investigate/resolve this?

[Ilya Goncharov [JB]]

Usually it is issues related with npm dependencies from kotlin-wrappers
If you have these ones and you declare it via npm dependencies, I recommend to change on maven dependencies from bintray
https://bintray.com/kotlin/kotlin-js-wrappers

You always can set development mode to webpack (via webpack.config.d/<some-file>.js ) and find what declaration was be removed and find, where it was removed from

[Big Chungus]

Hmm it seems to be an issue with ktor-client-cio-js dependency. After DCE in bundle I can see var encodeToByteArray = $module$ktor_ktor_<http://io.io.ktor.utils.io|io.io.ktor.utils.io>.charsets.encodeToByteArray_fj4osb$; However this line bellow throws an error CrLf = encodeToByteArray(charsets.Charsets.UTF_8.newEncoder(), '\r\n', 0, '\r\n'.length);

Uncaught TypeError: encodeToByteArray is not a function
    at Object.<anonymous> (main.bundle.js:48602)
    at main.bundle.js:47583
    at Object.../../../../hazelcast-explorer/build/kotlin-js-min/frontend/main/ktor-ktor-http-cio.js (main.bundle.js:47586)
    at __webpack_require__ (main.bundle.js:20)
    at main.bundle.js:38338
    at Object.../../../../hazelcast-explorer/build/kotlin-js-min/frontend/main/ktor-ktor-client-core.js (main.bundle.js:38343)
    at __webpack_require__ (main.bundle.js:20)
    at Object.../../../../hazelcast-explorer/build/kotlin-js-min/frontend/main/hazelcast-explorer-root-hazelcast-explorer-frontend.js (main.bundle.js:6220)
    at __webpack_require__ (main.bundle.js:20)
    at Object.0 (main.bundle.js:163986)

[Ilya Goncharov [JB]]

Yes, it is known problem with DCE
https://github.com/ktorio/ktor/issues/1339
There is WA inside

[Big Chungus]

Thanks, that helped! Btw is kotlin 1.3.70 release? As WA there mentions it, however my gradle can't find it

[Ilya Goncharov [JB]]

1.3.70 is in eap stage
https://discuss.kotlinlang.org/t/kotlin-1-3-70-early-access-preview/15876