Unity Cloud Build builds your projects for release by default. To create a development build, go to the build target’s Advanced Options and check the Development Builds box.
When the Development Builds box is enabled, this sets two flags in the
Note that to profile a web player build, you need to have the development version of the web player installed. You can only profile the .unity3d file when the development web player build is active. For more information on profiling your development build, see Profiler window.