diff --git a/internal/e2e/fine_grained_deps/package-lock.json b/internal/e2e/fine_grained_deps/package-lock.json
index 77e6240a42..5a8a395c45 100644
--- a/internal/e2e/fine_grained_deps/package-lock.json
+++ b/internal/e2e/fine_grained_deps/package-lock.json
@@ -67,6 +67,11 @@
       "resolved": "https://registry.npmjs.org/assign-symbols/-/assign-symbols-1.0.0.tgz",
       "integrity": "sha1-WWZ/QfrdTyDMvCu5a41Pf3jsA2c="
     },
+    "async": {
+      "version": "1.5.2",
+      "resolved": "http://registry.npmjs.org/async/-/async-1.5.2.tgz",
+      "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo="
+    },
     "async-each": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/async-each/-/async-each-1.0.1.tgz",
@@ -246,6 +251,11 @@
         "object-visit": "^1.0.0"
       }
     },
+    "colors": {
+      "version": "1.0.3",
+      "resolved": "http://registry.npmjs.org/colors/-/colors-1.0.3.tgz",
+      "integrity": "sha1-BDP0TYCWgP3rYO0mDxsMJi6CpAs="
+    },
     "component-emitter": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.2.1.tgz",
@@ -267,6 +277,11 @@
       "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
     },
+    "corser": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/corser/-/corser-2.0.1.tgz",
+      "integrity": "sha1-jtolLsqrWEDc2XXOuQ2TcMgZ/4c="
+    },
     "debug": {
       "version": "2.6.9",
       "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
@@ -317,6 +332,11 @@
         }
       }
     },
+    "eventemitter3": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-3.1.0.tgz",
+      "integrity": "sha512-ivIvhpq/Y0uSjcHDcOIccjmYjGLcP09MFGE7ysAwkAvkXfpZlC985pH2/ui64DKazbTW/4kN3yqozUxlXzI6cA=="
+    },
     "expand-brackets": {
       "version": "2.1.4",
       "resolved": "https://registry.npmjs.org/expand-brackets/-/expand-brackets-2.1.4.tgz",
@@ -458,6 +478,24 @@
         }
       }
     },
+    "follow-redirects": {
+      "version": "1.5.9",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.5.9.tgz",
+      "integrity": "sha512-Bh65EZI/RU8nx0wbYF9shkFZlqLP+6WT/5FnA3cE/djNSuKNHJEinGGZgu/cQEkeeb2GdFOgenAmn8qaqYke2w==",
+      "requires": {
+        "debug": "=3.1.0"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
+          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "requires": {
+            "ms": "2.0.0"
+          }
+        }
+      }
+    },
     "for-in": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/for-in/-/for-in-1.0.2.tgz",
@@ -1011,6 +1049,52 @@
         }
       }
     },
+    "http-proxy": {
+      "version": "1.17.0",
+      "resolved": "https://registry.npmjs.org/http-proxy/-/http-proxy-1.17.0.tgz",
+      "integrity": "sha512-Taqn+3nNvYRfJ3bGvKfBSRwy1v6eePlm3oc/aWVxZp57DQr5Eq3xhKJi7Z4hZpS8PC3H4qI+Yly5EmFacGuA/g==",
+      "requires": {
+        "eventemitter3": "^3.0.0",
+        "follow-redirects": "^1.0.0",
+        "requires-port": "^1.0.0"
+      }
+    },
+    "http-server": {
+      "version": "github:alexeagle/http-server#97205e945b69091606ed83aa0c8489e9ce65d282",
+      "from": "github:alexeagle/http-server#97205e945b69091606ed83aa0c8489e9ce65d282",
+      "requires": {
+        "colors": "1.0.3",
+        "corser": "~2.0.0",
+        "ecstatic": "github:alexeagle/node-ecstatic#833f734497f72f8cf396f162f46ad48c56ddc4ca",
+        "http-proxy": "^1.8.1",
+        "opener": "~1.4.0",
+        "optimist": "0.6.x",
+        "portfinder": "^1.0.13",
+        "union": "~0.4.3"
+      },
+      "dependencies": {
+        "ecstatic": {
+          "version": "github:alexeagle/node-ecstatic#833f734497f72f8cf396f162f46ad48c56ddc4ca",
+          "from": "github:alexeagle/node-ecstatic#833f734497f72f8cf396f162f46ad48c56ddc4ca",
+          "requires": {
+            "he": "^1.1.1",
+            "mime": "^1.4.1",
+            "minimist": "^1.1.0",
+            "url-join": "^2.0.2"
+          }
+        },
+        "he": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/he/-/he-1.2.0.tgz",
+          "integrity": "sha512-F/1DnUGPopORZi0ni+CvrCgHQ5FyEAHRLSApuYWMmrbSwoN2Mn/7k+Gl38gJnR7yyDZk6WLXwiGod1JOWNDKGw=="
+        },
+        "url-join": {
+          "version": "2.0.5",
+          "resolved": "https://registry.npmjs.org/url-join/-/url-join-2.0.5.tgz",
+          "integrity": "sha1-WvIvGMBSoACkjXuCxenC4v7tpyg="
+        }
+      }
+    },
     "inflight": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
@@ -1223,6 +1307,11 @@
         "to-regex": "^3.0.2"
       }
     },
+    "mime": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/mime/-/mime-1.6.0.tgz",
+      "integrity": "sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg=="
+    },
     "minimatch": {
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
@@ -1232,6 +1321,11 @@
         "brace-expansion": "^1.1.7"
       }
     },
+    "minimist": {
+      "version": "1.2.0",
+      "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+      "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ="
+    },
     "mixin-deep": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/mixin-deep/-/mixin-deep-1.3.1.tgz",
@@ -1251,6 +1345,21 @@
         }
       }
     },
+    "mkdirp": {
+      "version": "0.5.1",
+      "resolved": "http://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
+      "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
+      "requires": {
+        "minimist": "0.0.8"
+      },
+      "dependencies": {
+        "minimist": {
+          "version": "0.0.8",
+          "resolved": "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
+          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0="
+        }
+      }
+    },
     "ms": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
@@ -1341,6 +1450,27 @@
         "wrappy": "1"
       }
     },
+    "opener": {
+      "version": "1.4.3",
+      "resolved": "https://registry.npmjs.org/opener/-/opener-1.4.3.tgz",
+      "integrity": "sha1-XG2ixdflgx6P+jlklQ+NZnSskLg="
+    },
+    "optimist": {
+      "version": "0.6.1",
+      "resolved": "https://registry.npmjs.org/optimist/-/optimist-0.6.1.tgz",
+      "integrity": "sha1-2j6nRob6IaGaERwybpDrFaAZZoY=",
+      "requires": {
+        "minimist": "~0.0.1",
+        "wordwrap": "~0.0.2"
+      },
+      "dependencies": {
+        "minimist": {
+          "version": "0.0.10",
+          "resolved": "http://registry.npmjs.org/minimist/-/minimist-0.0.10.tgz",
+          "integrity": "sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8="
+        }
+      }
+    },
     "pascalcase": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/pascalcase/-/pascalcase-0.1.1.tgz",
@@ -1356,6 +1486,16 @@
       "resolved": "http://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
       "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18="
     },
+    "portfinder": {
+      "version": "1.0.19",
+      "resolved": "https://registry.npmjs.org/portfinder/-/portfinder-1.0.19.tgz",
+      "integrity": "sha512-23aeQKW9KgHe6citUrG3r9HjeX6vls0h713TAa+CwTKZwNIr/pD2ApaxYF4Um3ZZyq4ar+Siv3+fhoHaIwSOSw==",
+      "requires": {
+        "async": "^1.5.2",
+        "debug": "^2.2.0",
+        "mkdirp": "0.5.x"
+      }
+    },
     "posix-character-classes": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/posix-character-classes/-/posix-character-classes-0.1.1.tgz",
@@ -1366,6 +1506,11 @@
       "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.0.tgz",
       "integrity": "sha512-MtEC1TqN0EU5nephaJ4rAtThHtC86dNN9qCuEhtshvpVBkAW5ZO7BASN9REnF9eoXGcRub+pFuKEpOHE+HbEMw=="
     },
+    "qs": {
+      "version": "2.3.3",
+      "resolved": "https://registry.npmjs.org/qs/-/qs-2.3.3.tgz",
+      "integrity": "sha1-6eha2+ddoLvkyOBHaghikPhjtAQ="
+    },
     "readable-stream": {
       "version": "2.3.6",
       "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
@@ -1414,6 +1559,11 @@
       "resolved": "https://registry.npmjs.org/repeat-string/-/repeat-string-1.6.1.tgz",
       "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc="
     },
+    "requires-port": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/requires-port/-/requires-port-1.0.0.tgz",
+      "integrity": "sha1-kl0mAdOaxIXgkc8NpcbmlNw9yv8="
+    },
     "resolve-url": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/resolve-url/-/resolve-url-0.2.1.tgz",
@@ -1656,6 +1806,14 @@
       "integrity": "sha512-kk80vLW9iGtjMnIv11qyxLqZm20UklzuR2tL0QAnDIygIUIemcZMxlMWudl9OOt76H3ntVzcTiddQ1/pAAJMYg==",
       "dev": true
     },
+    "union": {
+      "version": "0.4.6",
+      "resolved": "https://registry.npmjs.org/union/-/union-0.4.6.tgz",
+      "integrity": "sha1-GY+9rrolTniLDvy2MLwR8kopWeA=",
+      "requires": {
+        "qs": "~2.3.3"
+      }
+    },
     "union-value": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.0.tgz",
@@ -1744,6 +1902,11 @@
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
       "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
     },
+    "wordwrap": {
+      "version": "0.0.3",
+      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
+      "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc="
+    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
diff --git a/internal/e2e/fine_grained_deps/package.json b/internal/e2e/fine_grained_deps/package.json
index 369e41777e..9b9f752e15 100644
--- a/internal/e2e/fine_grained_deps/package.json
+++ b/internal/e2e/fine_grained_deps/package.json
@@ -9,6 +9,7 @@
     "@gregmagolan/test-b": "0.0.2",
     "ajv": "5.5.2",
     "chokidar": "2.0.4",
+    "http-server": "github:alexeagle/http-server#97205e945b69091606ed83aa0c8489e9ce65d282",
     "klaw": "1.3.1"
   }
 }
diff --git a/internal/e2e/fine_grained_deps/yarn.lock b/internal/e2e/fine_grained_deps/yarn.lock
index 03154151d5..ac1d3e2b10 100644
--- a/internal/e2e/fine_grained_deps/yarn.lock
+++ b/internal/e2e/fine_grained_deps/yarn.lock
@@ -95,6 +95,11 @@ async-each@^1.0.0:
   resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.1.tgz#19d386a1d9edc6e7c1c85d388aedbcc56d33602d"
   integrity sha1-GdOGodntxufByF04iu28xW0zYC0=
 
+async@^1.5.2:
+  version "1.5.2"
+  resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
+  integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
+
 atob@^2.1.1:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.2.tgz#6d9517eb9e030d2436666651e86bd9f6f13533c9"
@@ -215,6 +220,11 @@ collection-visit@^1.0.0:
     map-visit "^1.0.0"
     object-visit "^1.0.0"
 
+colors@1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/colors/-/colors-1.0.3.tgz#0433f44d809680fdeb60ed260f1b0c262e82a40b"
+  integrity sha1-BDP0TYCWgP3rYO0mDxsMJi6CpAs=
+
 component-emitter@^1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.2.1.tgz#137918d6d78283f7df7a6b7c5a63e140e69425e6"
@@ -240,6 +250,18 @@ core-util-is@~1.0.0:
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
   integrity sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=
 
+corser@~2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/corser/-/corser-2.0.1.tgz#8eda252ecaab5840dcd975ceb90d9370c819ff87"
+  integrity sha1-jtolLsqrWEDc2XXOuQ2TcMgZ/4c=
+
+debug@=3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
+  integrity sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==
+  dependencies:
+    ms "2.0.0"
+
 debug@^2.1.2, debug@^2.2.0, debug@^2.3.3:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
@@ -289,6 +311,20 @@ detect-libc@^1.0.2:
   resolved "https://registry.yarnpkg.com/detect-libc/-/detect-libc-1.0.3.tgz#fa137c4bd698edf55cd5cd02ac559f91a4c4ba9b"
   integrity sha1-+hN8S9aY7fVc1c0CrFWfkaTEups=
 
+"ecstatic@github:alexeagle/node-ecstatic#833f734497f72f8cf396f162f46ad48c56ddc4ca":
+  version "3.2.0"
+  resolved "https://codeload.github.com/alexeagle/node-ecstatic/tar.gz/833f734497f72f8cf396f162f46ad48c56ddc4ca"
+  dependencies:
+    he "^1.1.1"
+    mime "^1.4.1"
+    minimist "^1.1.0"
+    url-join "^2.0.2"
+
+eventemitter3@^3.0.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-3.1.0.tgz#090b4d6cdbd645ed10bf750d4b5407942d7ba163"
+  integrity sha512-ivIvhpq/Y0uSjcHDcOIccjmYjGLcP09MFGE7ysAwkAvkXfpZlC985pH2/ui64DKazbTW/4kN3yqozUxlXzI6cA==
+
 expand-brackets@^2.1.4:
   version "2.1.4"
   resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-2.1.4.tgz#b77735e315ce30f6b6eff0f83b04151a22449622"
@@ -351,6 +387,13 @@ fill-range@^4.0.0:
     repeat-string "^1.6.1"
     to-regex-range "^2.1.0"
 
+follow-redirects@^1.0.0:
+  version "1.5.9"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.5.9.tgz#c9ed9d748b814a39535716e531b9196a845d89c6"
+  integrity sha512-Bh65EZI/RU8nx0wbYF9shkFZlqLP+6WT/5FnA3cE/djNSuKNHJEinGGZgu/cQEkeeb2GdFOgenAmn8qaqYke2w==
+  dependencies:
+    debug "=3.1.0"
+
 for-in@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
@@ -463,6 +506,33 @@ has-values@^1.0.0:
     is-number "^3.0.0"
     kind-of "^4.0.0"
 
+he@^1.1.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/he/-/he-1.2.0.tgz#84ae65fa7eafb165fddb61566ae14baf05664f0f"
+  integrity sha512-F/1DnUGPopORZi0ni+CvrCgHQ5FyEAHRLSApuYWMmrbSwoN2Mn/7k+Gl38gJnR7yyDZk6WLXwiGod1JOWNDKGw==
+
+http-proxy@^1.8.1:
+  version "1.17.0"
+  resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.17.0.tgz#7ad38494658f84605e2f6db4436df410f4e5be9a"
+  integrity sha512-Taqn+3nNvYRfJ3bGvKfBSRwy1v6eePlm3oc/aWVxZp57DQr5Eq3xhKJi7Z4hZpS8PC3H4qI+Yly5EmFacGuA/g==
+  dependencies:
+    eventemitter3 "^3.0.0"
+    follow-redirects "^1.0.0"
+    requires-port "^1.0.0"
+
+"http-server@github:alexeagle/http-server#97205e945b69091606ed83aa0c8489e9ce65d282":
+  version "0.11.1"
+  resolved "https://codeload.github.com/alexeagle/http-server/tar.gz/97205e945b69091606ed83aa0c8489e9ce65d282"
+  dependencies:
+    colors "1.0.3"
+    corser "~2.0.0"
+    ecstatic "github:alexeagle/node-ecstatic#833f734497f72f8cf396f162f46ad48c56ddc4ca"
+    http-proxy "^1.8.1"
+    opener "~1.4.0"
+    optimist "0.6.x"
+    portfinder "^1.0.13"
+    union "~0.4.3"
+
 iconv-lite@^0.4.4:
   version "0.4.24"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"
@@ -717,6 +787,11 @@ micromatch@^3.1.10, micromatch@^3.1.4:
     snapdragon "^0.8.1"
     to-regex "^3.0.2"
 
+mime@^1.4.1:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
+  integrity sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg==
+
 minimatch@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
@@ -729,11 +804,16 @@ minimist@0.0.8:
   resolved "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
   integrity sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=
 
-minimist@^1.2.0:
+minimist@^1.1.0, minimist@^1.2.0:
   version "1.2.0"
   resolved "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
   integrity sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=
 
+minimist@~0.0.1:
+  version "0.0.10"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
+  integrity sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=
+
 minipass@^2.2.1, minipass@^2.3.3:
   version "2.3.4"
   resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.3.4.tgz#4768d7605ed6194d6d576169b9e12ef71e9d9957"
@@ -757,7 +837,7 @@ mixin-deep@^1.2.0:
     for-in "^1.0.2"
     is-extendable "^1.0.1"
 
-mkdirp@^0.5.0, mkdirp@^0.5.1:
+mkdirp@0.5.x, mkdirp@^0.5.0, mkdirp@^0.5.1:
   version "0.5.1"
   resolved "http://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   integrity sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=
@@ -894,6 +974,19 @@ once@^1.3.0:
   dependencies:
     wrappy "1"
 
+opener@~1.4.0:
+  version "1.4.3"
+  resolved "https://registry.yarnpkg.com/opener/-/opener-1.4.3.tgz#5c6da2c5d7e5831e8ffa3964950f8d6674ac90b8"
+  integrity sha1-XG2ixdflgx6P+jlklQ+NZnSskLg=
+
+optimist@0.6.x:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/optimist/-/optimist-0.6.1.tgz#da3ea74686fa21a19a111c326e90eb15a0196686"
+  integrity sha1-2j6nRob6IaGaERwybpDrFaAZZoY=
+  dependencies:
+    minimist "~0.0.1"
+    wordwrap "~0.0.2"
+
 os-homedir@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
@@ -927,6 +1020,15 @@ path-is-absolute@^1.0.0:
   resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
   integrity sha1-F0uSaHNVNP+8es5r9TpanhtcX18=
 
+portfinder@^1.0.13:
+  version "1.0.19"
+  resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.19.tgz#07e87914a55242dcda5b833d42f018d6875b595f"
+  integrity sha512-23aeQKW9KgHe6citUrG3r9HjeX6vls0h713TAa+CwTKZwNIr/pD2ApaxYF4Um3ZZyq4ar+Siv3+fhoHaIwSOSw==
+  dependencies:
+    async "^1.5.2"
+    debug "^2.2.0"
+    mkdirp "0.5.x"
+
 posix-character-classes@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
@@ -937,6 +1039,11 @@ process-nextick-args@~2.0.0:
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.0.tgz#a37d732f4271b4ab1ad070d35508e8290788ffaa"
   integrity sha512-MtEC1TqN0EU5nephaJ4rAtThHtC86dNN9qCuEhtshvpVBkAW5ZO7BASN9REnF9eoXGcRub+pFuKEpOHE+HbEMw==
 
+qs@~2.3.3:
+  version "2.3.3"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-2.3.3.tgz#e9e85adbe75da0bbe4c8e0476a086290f863b404"
+  integrity sha1-6eha2+ddoLvkyOBHaghikPhjtAQ=
+
 rc@^1.2.7:
   version "1.2.8"
   resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.8.tgz#cd924bf5200a075b83c188cd6b9e211b7fc0d3ed"
@@ -992,6 +1099,11 @@ repeat-string@^1.6.1:
   resolved "https://registry.yarnpkg.com/repeat-string/-/repeat-string-1.6.1.tgz#8dcae470e1c88abc2d600fff4a776286da75e637"
   integrity sha1-jcrkcOHIirwtYA//Sndihtp15jc=
 
+requires-port@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
+  integrity sha1-kl0mAdOaxIXgkc8NpcbmlNw9yv8=
+
 resolve-url@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
@@ -1228,6 +1340,13 @@ union-value@^1.0.0:
     is-extendable "^0.1.1"
     set-value "^0.4.3"
 
+union@~0.4.3:
+  version "0.4.6"
+  resolved "https://registry.yarnpkg.com/union/-/union-0.4.6.tgz#198fbdaeba254e788b0efcb630bc11f24a2959e0"
+  integrity sha1-GY+9rrolTniLDvy2MLwR8kopWeA=
+  dependencies:
+    qs "~2.3.3"
+
 unset-value@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unset-value/-/unset-value-1.0.0.tgz#8376873f7d2335179ffb1e6fc3a8ed0dfc8ab559"
@@ -1246,6 +1365,11 @@ urix@^0.1.0:
   resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"
   integrity sha1-2pN/emLiH+wf0Y1Js1wpNQZ6bHI=
 
+url-join@^2.0.2:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/url-join/-/url-join-2.0.5.tgz#5af22f18c052a000a48d7b82c5e9c2e2feeda728"
+  integrity sha1-WvIvGMBSoACkjXuCxenC4v7tpyg=
+
 use@^3.1.0:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/use/-/use-3.1.1.tgz#d50c8cac79a19fbc20f2911f56eb973f4e10070f"
@@ -1263,6 +1387,11 @@ wide-align@^1.1.0:
   dependencies:
     string-width "^1.0.2 || 2"
 
+wordwrap@~0.0.2:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
+  integrity sha1-o9XabNXAvAAI03I0u68b7WMFkQc=
+
 wrappy@1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
diff --git a/internal/npm_install/generate_build_file.js b/internal/npm_install/generate_build_file.js
index a1bb5d9498..96e69bb72d 100644
--- a/internal/npm_install/generate_build_file.js
+++ b/internal/npm_install/generate_build_file.js
@@ -166,13 +166,6 @@ function listFiles(rootDir, subDir = '') {
   const dir = path.posix.join(rootDir, subDir);
   return fs
       .readdirSync(dir)
-      // Filter out .bin folder since this is a folder created by yarn/npm that contains
-      // only symlinks and it breaks this function on Windows.
-      // For example, `node_modules/foo/.bin/foo` would be a symlink to `node_modules/.bin/foo`
-      .filter(f => !(f === '.bin' && fs.statSync(path.posix.join(dir, f)).isDirectory()))
-      // Also filter out test folders which contain symlinks in some packages
-      // such as `ecstatic/test/public/containsSymlink/more-problematic`
-      .filter(f => !(f === 'test' && fs.statSync(path.posix.join(dir, f)).isDirectory()))
       // Delete BUILD and BUILD.bazel files so that so that files do not cross Bazel package
       // boundaries. npm packages should not generally include BUILD or BUILD.bazel files
       // but they may as rxjs does temporarily.
@@ -181,8 +174,19 @@ function listFiles(rootDir, subDir = '') {
       .reduce((files, file) => {
         const fullPath = path.posix.join(dir, file);
         const relPath = path.posix.join(subDir, file);
-        return fs.statSync(fullPath).isDirectory() ? files.concat(listFiles(rootDir, relPath)) :
-                                                     files.concat(relPath);
+        let stat;
+        try {
+          stat = fs.statSync(fullPath);
+        } catch (e) {
+          if (fs.lstatSync(fullPath).isSymbolicLink()) {
+            // filter out broken symbolic links... these cause fs.statSync(fullPath)
+            // to fail with `ENOENT: no such file or directory ...`
+            return files;
+          }
+          throw e;
+        }
+        return stat.isDirectory() ? files.concat(listFiles(rootDir, relPath)) :
+                                    files.concat(relPath);
       }, []);
 }
 
diff --git a/internal/npm_install/test/golden/node_modules/@gregmagolan/test-a/BUILD.bazel.golden b/internal/npm_install/test/golden/node_modules/@gregmagolan/test-a/BUILD.bazel.golden
index 881edc16f0..0efe4bc2be 100644
--- a/internal/npm_install/test/golden/node_modules/@gregmagolan/test-a/BUILD.bazel.golden
+++ b/internal/npm_install/test/golden/node_modules/@gregmagolan/test-a/BUILD.bazel.golden
@@ -12,6 +12,7 @@ filegroup(
 filegroup(
     name = "test-a__files",
     srcs = [
+        ":.bin/test",
         ":@bin/test.js",
         ":main.js",
         ":package.json",
diff --git a/internal/npm_install/test/golden/node_modules/jasmine/BUILD.bazel.golden b/internal/npm_install/test/golden/node_modules/jasmine/BUILD.bazel.golden
index 094243a005..cd58c5778d 100644
--- a/internal/npm_install/test/golden/node_modules/jasmine/BUILD.bazel.golden
+++ b/internal/npm_install/test/golden/node_modules/jasmine/BUILD.bazel.golden
@@ -23,6 +23,7 @@ filegroup(
 filegroup(
     name = "jasmine__files",
     srcs = [
+        ":.bin/jasmine",
         ":.editorconfig",
         ":.travis.yml",
         ":Gruntfile.js",
diff --git a/internal/npm_install/test/golden/node_modules/unidiff/BUILD.bazel.golden b/internal/npm_install/test/golden/node_modules/unidiff/BUILD.bazel.golden
index dcb5d6aa44..854b3a1bd9 100644
--- a/internal/npm_install/test/golden/node_modules/unidiff/BUILD.bazel.golden
+++ b/internal/npm_install/test/golden/node_modules/unidiff/BUILD.bazel.golden
@@ -17,6 +17,10 @@ filegroup(
         ":hunk.js",
         ":package.json",
         ":readme.md",
+        ":test/example.js",
+        ":test/table.js",
+        ":test/test_hunk.js",
+        ":test/test_unidiff.js",
         ":unidiff.js",
     ],
     tags = ["NODE_MODULE_MARKER"],