Why are there createSocket commands in source?

[pennyfx]

This is a cool concept, but as the other issue said, we need the source code and build process. I can't tell if these references are benign or not. There are also references to indexdb. Talib is only a collection of math functions, so I can't imagine why this other stuff is included.

createSocket:function(A,I,g){

indexedDB:function(){return window.indexedDB||window.mozIndexedDB||window.webkitIndexedDB||window.msIndexedDB},DB_NAME:function(){return"EM_FS_"+window.location.pathname},DB_VERSION:20,DB_STORE_NAME:"FILE_DATA",saveFilesToDB:function(A,I,g){I=I||function(){},g=g||function(){};var C=JA.indexedDB()

[insane-jo]

Sorry for my long answer.
This package was a part of my another project - trade robots builder platform. May be this was one of dependencies inside project. But I think - this can be artifacts inside emscripten.
Anyway - you can see inside commit with build scripts.