Issue type:
[x] bug report

Database system/driver:
all / browser-builds

TypeORM version:
[x] 0.2.26

Steps to reproduce or a small repository showing the problem:
Building a project with TypeORM 0.2.26 with webpack for a browser target leads to multiple errors, the following is just just an excerpt (with duplicates removed):

WARNING in ../node_modules/typeorm/browser/connection/ConnectionOptionsReader.js 114:45-64
Critical dependency: the request of a dependency is an expression

WARNING in ../node_modules/typeorm/browser/util/DirectoryExportedClassesLoader.js 38:38-78
Critical dependency: the request of a dependency is an expression

Module not found: Error: Can't resolve 'path'

Module not found: Error: Can't resolve 'stream'

Module not found: Error: Can't resolve 'fs'

Module not found: Error: Can't resolve 'timers'

I could track this down to this commit:
490ad0d

I reverted this commit locally and could then successfully use 0.2.26 with this modification in a browser Webpack build.

I guess that #6630 didn't take browser builds into account for its refactoring. On a quick look those errors (and the code changes in the pull request) do look like node-only stuff.

I suggest reverting the commit/PR @pleerock.