<!-- We will close this issue if you don't provide the needed information. For feature requests, delete the form below and describe the requirements and use case. --> ### Versions ``` angular/cli : 1.0.3 node : 6.11.1 os : win32 x64 ``` ### Repro steps When executing **ng build -aot false -prod** it gives following error. ### Observed behavior ``` > ERROR in vendor.394aa10abde0566efdcb.bundle.js from UglifyJs > Unexpected token: operator (>) [vendor.394aa10abde0566efdcb.bundle.js:56810,35] ``` ### Desired behavior After investigation found out that source-map V0.7.0 is the issue and when downgrade to 0.6.1 it works as expected. Anyone faced this issue?