Bisected to a64669305965f5202758d0d3939a82ed66f54e0d.
When I "make serve_vulcanized" or try to deploy to staging I get:
error: Promise rejection: Error: ENOENT: no such file or directory, open '/usr/local/google/home/hablich/src/infra_internal/infra_internal/appengine/chromiumdash/third_party/bower_components/polymer/polymer.html'
error: Error: ENOENT: no such file or directory, open '/usr/local/google/home/hablich/src/infra_internal/infra_internal/appengine/chromiumdash/third_party/bower_components/polymer/polymer.html'
make: *** [vulcanize] Error 1
Comment 1 by hablich@chromium.org
, Sep 4 2017