diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f7a8a53..a95dfb6 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,14 +3,14 @@ image: registry.gitlab.com/hosttoday/ht-docker-node:npmci
 
 cache:
   paths:
-  - .npmci_cache/
-  key: "$CI_BUILD_STAGE"
+    - .npmci_cache/
+  key: '$CI_BUILD_STAGE'
 
 stages:
-- security
-- test
-- release
-- metadata
+  - security
+  - test
+  - release
+  - metadata
 
 # ====================
 # security stage
@@ -18,21 +18,23 @@ stages:
 mirror:
   stage: security
   script:
-  - npmci git mirror
+    - npmci git mirror
   tags:
-  - docker
-  - notpriv
+    - lossless
+    - docker
+    - notpriv
 
 snyk:
+  image: registry.gitlab.com/hosttoday/ht-docker-node:snyk
   stage: security
   script:
     - npmci npm prepare
-    - npmci command npm install -g snyk
     - npmci command npm install --ignore-scripts
     - npmci command snyk test
   tags:
-  - docker
-  - notpriv
+    - lossless
+    - docker
+    - notpriv
 
 # ====================
 # test stage
@@ -41,37 +43,40 @@ snyk:
 testStable:
   stage: test
   script:
-  - npmci npm prepare
-  - npmci node install stable
-  - npmci npm install
-  - npmci npm test
+    - npmci npm prepare
+    - npmci node install stable
+    - npmci npm install
+    - npmci npm test
   coverage: /\d+.?\d+?\%\s*coverage/
   tags:
-  - docker
-  - priv
+    - lossless
+    - docker
+    - priv
 
 testBuild:
   stage: test
   script:
-  - npmci npm prepare
-  - npmci node install stable
-  - npmci npm install
-  - npmci command npm run build
+    - npmci npm prepare
+    - npmci node install stable
+    - npmci npm install
+    - npmci command npm run build
   coverage: /\d+.?\d+?\%\s*coverage/
   tags:
-  - docker
-  - notpriv
+    - lossless
+    - docker
+    - notpriv
 
 release:
   stage: release
   script:
-  - npmci node install stable
-  - npmci npm publish
+    - npmci node install stable
+    - npmci npm publish
   only:
-  - tags
+    - tags
   tags:
-  - docker
-  - notpriv
+    - lossless
+    - docker
+    - notpriv
 
 # ====================
 # metadata stage
@@ -85,18 +90,20 @@ codequality:
     - npmci npm install
     - npmci command "tslint -c tslint.json ./ts/**/*.ts"
   tags:
-  - docker
-  - priv
+    - lossless
+    - docker
+    - priv
 
 trigger:
   stage: metadata
   script:
-  - npmci trigger
+    - npmci trigger
   only:
-  - tags
+    - tags
   tags:
-  - docker
-  - notpriv
+    - lossless
+    - docker
+    - notpriv
 
 pages:
   stage: metadata
@@ -107,6 +114,7 @@ pages:
     - npmci npm install
     - npmci command tsdoc
   tags:
+    - lossless
     - docker
     - notpriv
   only:
@@ -114,5 +122,5 @@ pages:
   artifacts:
     expire_in: 1 week
     paths:
-    - public
+      - public
   allow_failure: true
diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..112db52
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,29 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "current file",
+      "type": "node",
+      "request": "launch",
+      "args": [
+        "${relativeFile}"
+      ],
+      "runtimeArgs": ["-r", "@gitzone/tsrun"],
+      "cwd": "${workspaceRoot}",
+      "protocol": "inspector",
+      "internalConsoleOptions": "openOnSessionStart"
+    },
+    {
+      "name": "test.ts",
+      "type": "node",
+      "request": "launch",
+      "args": [
+        "test/test.ts"
+      ],
+      "runtimeArgs": ["-r", "@gitzone/tsrun"],
+      "cwd": "${workspaceRoot}",
+      "protocol": "inspector",
+      "internalConsoleOptions": "openOnSessionStart"
+    }
+  ]
+}
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..01d2b8d
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,26 @@
+{
+  "json.schemas": [
+    {
+      "fileMatch": ["/npmextra.json"],
+      "schema": {
+        "type": "object",
+        "properties": {
+          "npmci": {
+            "type": "object",
+            "description": "settings for npmci"
+          },
+          "gitzone": {
+            "type": "object",
+            "description": "settings for gitzone",
+            "properties": {
+              "projectType": {
+                "type": "string",
+                "enum": ["website", "element", "service", "npm"]
+              }
+            }
+          }
+        }
+      }
+    }
+  ]
+}
diff --git a/npmextra.json b/npmextra.json
index c035555..94fbce8 100644
--- a/npmextra.json
+++ b/npmextra.json
@@ -4,6 +4,7 @@
     "npmAccessLevel": "public"
   },
   "gitzone": {
+    "projectType": "npm",
     "module": {
       "githost": "gitlab.com",
       "gitscope": "pushrocks",
diff --git a/package-lock.json b/package-lock.json
index f33470c..345a154 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,18 +11,18 @@
       "dev": true
     },
     "@babel/code-frame": {
-      "version": "7.5.5",
-      "resolved": "https://verdaccio.lossless.one/@babel%2fcode-frame/-/code-frame-7.5.5.tgz",
-      "integrity": "sha512-27d4lZoomVyo51VegxI20xZPuSHusqbQag/ztrBC7wegWoQ1nLREPVSKSW8byhTlzTKyNE4ifaTA6lCp7JjpFw==",
+      "version": "7.8.3",
+      "resolved": "https://verdaccio.lossless.one/@babel%2fcode-frame/-/code-frame-7.8.3.tgz",
+      "integrity": "sha512-a9gxpmdXtZEInkCSHUJDLHZVBgb1QS0jhss4cPP93EW7s+uC5bikET2twEF3KV+7rDblJcmNvTR7VJejqd2C2g==",
       "dev": true,
       "requires": {
-        "@babel/highlight": "^7.0.0"
+        "@babel/highlight": "^7.8.3"
       }
     },
     "@babel/highlight": {
-      "version": "7.5.0",
-      "resolved": "https://verdaccio.lossless.one/@babel%2fhighlight/-/highlight-7.5.0.tgz",
-      "integrity": "sha512-7dV4eu9gBxoM0dAnj/BCFDW9LFU0zvTrkq0ugM7pnHEgguOEeOz1so2ZghEdzviYzQEED0r4EAgpsBChKy1TRQ==",
+      "version": "7.8.3",
+      "resolved": "https://verdaccio.lossless.one/@babel%2fhighlight/-/highlight-7.8.3.tgz",
+      "integrity": "sha512-PX4y5xQUvy0fnEVHrYOarRPXVWafSjTW9T0Hab8gVIawpl2Sj0ORyrygANq+KjcNlSSTw0YCLSNA8OyZ1I4yEg==",
       "dev": true,
       "requires": {
         "chalk": "^2.0.0",
@@ -73,7 +73,7 @@
     },
     "@pushrocks/consolecolor": {
       "version": "2.0.1",
-      "resolved": "https://verdaccio.lossless.one/@pushrocks%2fconsolecolor/-/consolecolor-2.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/@pushrocks/consolecolor/-/consolecolor-2.0.1.tgz",
       "integrity": "sha512-iOFCHVeFZ2OywbdwSxVI4/wokkcLrXVdHLgvMmkNhJ220eeLgjNZWx3EJo3vNW3zq5ybCSCUIq0878djBxrWpw==",
       "dev": true,
       "requires": {
@@ -137,11 +137,11 @@
       }
     },
     "@pushrocks/smartdelay": {
-      "version": "2.0.3",
-      "resolved": "https://verdaccio.lossless.one/@pushrocks%2fsmartdelay/-/smartdelay-2.0.3.tgz",
-      "integrity": "sha512-TXKDDqsc7sBTLl+oiYNaF6IdNk1n70i8ur8QfwcUU6tegTnrEkvMWy9h5Zdty/fq1ioCNpKLvuXoA+fgYVwKGQ==",
+      "version": "2.0.6",
+      "resolved": "https://verdaccio.lossless.one/@pushrocks%2fsmartdelay/-/smartdelay-2.0.6.tgz",
+      "integrity": "sha512-4wUnzWNhRPODpaaL5GuRaje/C5dg+TMhBxmr57PKc2fqYpy6azWJwonf/s5xpcbJLCPJRbj1x8M5MqgCFq2uvg==",
       "requires": {
-        "@pushrocks/smartpromise": "^3.0.2"
+        "@pushrocks/smartpromise": "^3.0.6"
       }
     },
     "@pushrocks/smarterror": {
@@ -198,23 +198,23 @@
       }
     },
     "@pushrocks/smarthash": {
-      "version": "2.0.6",
-      "resolved": "https://verdaccio.lossless.one/@pushrocks%2fsmarthash/-/smarthash-2.0.6.tgz",
-      "integrity": "sha512-jHk9srgRLkszk/oPCUOkxTX2Fqu7qKwx13aEeSIBx8UCtFbXPLecJAqEaGEVk1mw9e4Oq0iC6O0jEnxKo5NQwA==",
+      "version": "2.1.6",
+      "resolved": "https://verdaccio.lossless.one/@pushrocks%2fsmarthash/-/smarthash-2.1.6.tgz",
+      "integrity": "sha512-TYa3wECYkeDoE8SomxcCJFg5Kt4+G4MtNMu3yATJCCoPLJIbyV1CwUvYuFYkkce2W4ZvH9h/N6dsHc69oI5Jcw==",
       "requires": {
-        "@pushrocks/smartjson": "^3.0.5",
-        "@pushrocks/smartpromise": "^3.0.2",
+        "@pushrocks/smartjson": "^3.0.10",
+        "@pushrocks/smartpromise": "^3.0.6",
         "@types/through2": "^2.0.34",
         "through2": "^3.0.1"
       }
     },
     "@pushrocks/smartjson": {
-      "version": "3.0.8",
-      "resolved": "https://verdaccio.lossless.one/@pushrocks%2fsmartjson/-/smartjson-3.0.8.tgz",
-      "integrity": "sha512-EjC3611RSZaZmK+nXxXrYDBxdxYWtrxjOrZtQzbYn0yM33KSCH0sLIAG8B2wYZVAOj4A2pC8mVxFSJ1w3iRFHg==",
+      "version": "3.0.10",
+      "resolved": "https://verdaccio.lossless.one/@pushrocks%2fsmartjson/-/smartjson-3.0.10.tgz",
+      "integrity": "sha512-0tBkET2yjmSSIf4DlgeyU8U/J2EshTmQGuMY28EjPq9VvuCFXLh72WmETpA4QqKRMqhWp1+P+RZgnQupW3GQxQ==",
       "requires": {
         "@types/fast-json-stable-stringify": "^2.0.0",
-        "fast-json-stable-stringify": "^2.0.0",
+        "fast-json-stable-stringify": "^2.1.0",
         "lodash.clonedeep": "^4.5.0"
       }
     },
@@ -267,7 +267,7 @@
     },
     "@pushrocks/smartpath": {
       "version": "4.0.1",
-      "resolved": "https://verdaccio.lossless.one/@pushrocks%2fsmartpath/-/smartpath-4.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/@pushrocks/smartpath/-/smartpath-4.0.1.tgz",
       "integrity": "sha512-MaI0+uLQPCr2V3WGnbdgb0pWa9xkWyrP4qYcbsHIjeismGLbn9s3jmP/HIXU8LkgzRgaVb+BJxmZJHOwl32DyA==",
       "dev": true
     },
@@ -326,21 +326,22 @@
       }
     },
     "@pushrocks/tapbundle": {
-      "version": "3.0.13",
-      "resolved": "https://verdaccio.lossless.one/@pushrocks%2ftapbundle/-/tapbundle-3.0.13.tgz",
-      "integrity": "sha512-23O4UMBafCuD+RnUlXNvtT9DGbL1HMD+xZE1Zcr7Ll7WvgxUgRQQfk9kq6qbLLbjaRe1J2Ijsgh1HuZbBaucLQ==",
+      "version": "3.2.0",
+      "resolved": "https://verdaccio.lossless.one/@pushrocks%2ftapbundle/-/tapbundle-3.2.0.tgz",
+      "integrity": "sha512-xnKIGe7NJqxWBaFeKIEXShDjV2wap1XJqmlp3m1MKqmIF62vRpZnkzpyE1ZAoNwiYQmIsXIpvP/PDv+iPevPfw==",
       "dev": true,
       "requires": {
         "@pushrocks/early": "^3.0.3",
         "@pushrocks/smartdelay": "^2.0.3",
+        "@pushrocks/smartfile": "^7.0.6",
         "@pushrocks/smartpromise": "^3.0.2",
         "smartchai": "^2.0.1"
       }
     },
     "@types/chai": {
-      "version": "4.2.4",
-      "resolved": "https://verdaccio.lossless.one/@types%2fchai/-/chai-4.2.4.tgz",
-      "integrity": "sha512-7qvf9F9tMTzo0akeswHPGqgUx/gIaJqrOEET/FCD8CFRkSUHlygQiM5yB6OvjrtdxBVLSyw7COJubsFYs0683g==",
+      "version": "4.2.8",
+      "resolved": "https://verdaccio.lossless.one/@types%2fchai/-/chai-4.2.8.tgz",
+      "integrity": "sha512-U1bQiWbln41Yo6EeHMr+34aUhvrMVyrhn9lYfPSpLTCrZlGxU4Rtn1bocX+0p2Fc/Jkd2FanCEXdw0WNfHHM0w==",
       "dev": true
     },
     "@types/chai-as-promised": {
@@ -414,9 +415,9 @@
       "dev": true
     },
     "@types/node": {
-      "version": "12.11.5",
-      "resolved": "https://verdaccio.lossless.one/@types%2fnode/-/node-12.11.5.tgz",
-      "integrity": "sha512-LC8ALj/24PhByn39nr5jnTvpE7MujK8y7LQmV74kHYF5iQ0odCPkMH4IZNZw+cobKfSXqaC8GgegcbIsQpffdA=="
+      "version": "13.7.0",
+      "resolved": "https://verdaccio.lossless.one/@types%2fnode/-/node-13.7.0.tgz",
+      "integrity": "sha512-GnZbirvmqZUzMgkFn70c74OQpTTUcCzlhQliTzYjQMqg+hVKcDnxdL19Ne3UdYzdMA/+W3eb646FWn/ZaT1NfQ=="
     },
     "@types/through2": {
       "version": "2.0.34",
@@ -451,7 +452,7 @@
     },
     "ansi-256-colors": {
       "version": "1.1.0",
-      "resolved": "https://verdaccio.lossless.one/ansi-256-colors/-/ansi-256-colors-1.1.0.tgz",
+      "resolved": "https://registry.npmjs.org/ansi-256-colors/-/ansi-256-colors-1.1.0.tgz",
       "integrity": "sha1-kQ3lDvzHwJ49gvL4er1rcAwYgYo=",
       "dev": true
     },
@@ -478,7 +479,7 @@
     },
     "argparse": {
       "version": "1.0.10",
-      "resolved": "https://verdaccio.lossless.one/argparse/-/argparse-1.0.10.tgz",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
       "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
       "dev": true,
       "requires": {
@@ -493,19 +494,19 @@
     },
     "asynckit": {
       "version": "0.4.0",
-      "resolved": "https://verdaccio.lossless.one/asynckit/-/asynckit-0.4.0.tgz",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
       "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k=",
       "dev": true
     },
     "balanced-match": {
       "version": "1.0.0",
-      "resolved": "https://verdaccio.lossless.one/balanced-match/-/balanced-match-1.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
       "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
       "dev": true
     },
     "brace-expansion": {
       "version": "1.1.11",
-      "resolved": "https://verdaccio.lossless.one/brace-expansion/-/brace-expansion-1.1.11.tgz",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
       "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
       "dev": true,
       "requires": {
@@ -622,7 +623,7 @@
     },
     "color-convert": {
       "version": "1.9.3",
-      "resolved": "https://verdaccio.lossless.one/color-convert/-/color-convert-1.9.3.tgz",
+      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.3.tgz",
       "integrity": "sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==",
       "dev": true,
       "requires": {
@@ -631,7 +632,7 @@
     },
     "color-name": {
       "version": "1.1.3",
-      "resolved": "https://verdaccio.lossless.one/color-name/-/color-name-1.1.3.tgz",
+      "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz",
       "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
       "dev": true
     },
@@ -652,15 +653,10 @@
     },
     "concat-map": {
       "version": "0.0.1",
-      "resolved": "https://verdaccio.lossless.one/concat-map/-/concat-map-0.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
       "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
       "dev": true
     },
-    "core-util-is": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
-      "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
-    },
     "cron": {
       "version": "1.7.2",
       "resolved": "https://verdaccio.lossless.one/cron/-/cron-1.7.2.tgz",
@@ -717,7 +713,7 @@
     },
     "delayed-stream": {
       "version": "1.0.0",
-      "resolved": "https://verdaccio.lossless.one/delayed-stream/-/delayed-stream-1.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
       "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk=",
       "dev": true
     },
@@ -744,7 +740,7 @@
     },
     "escape-string-regexp": {
       "version": "1.0.5",
-      "resolved": "https://verdaccio.lossless.one/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
+      "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
       "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=",
       "dev": true
     },
@@ -776,9 +772,9 @@
       }
     },
     "fast-json-stable-stringify": {
-      "version": "2.0.0",
-      "resolved": "https://verdaccio.lossless.one/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz",
-      "integrity": "sha1-1RQsDK7msRifh9OnYREGT4bIu/I="
+      "version": "2.1.0",
+      "resolved": "https://verdaccio.lossless.one/fast-json-stable-stringify/-/fast-json-stable-stringify-2.1.0.tgz",
+      "integrity": "sha512-lhd/wF+Lk98HZoTCtlVraHtfh5XYijIjalXck7saUtuanSDyLMxnHhSXEDJqHxD7msR8D0uCmqlkwjCV8xvwHw=="
     },
     "figures": {
       "version": "3.1.0",
@@ -822,7 +818,7 @@
     },
     "fs.realpath": {
       "version": "1.0.0",
-      "resolved": "https://verdaccio.lossless.one/fs.realpath/-/fs.realpath-1.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
       "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
       "dev": true
     },
@@ -869,7 +865,7 @@
     },
     "has-flag": {
       "version": "3.0.0",
-      "resolved": "https://verdaccio.lossless.one/has-flag/-/has-flag-3.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
       "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0=",
       "dev": true
     },
@@ -884,7 +880,7 @@
     },
     "inflight": {
       "version": "1.0.6",
-      "resolved": "https://verdaccio.lossless.one/inflight/-/inflight-1.0.6.tgz",
+      "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
       "integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
       "dev": true,
       "requires": {
@@ -921,14 +917,9 @@
       "integrity": "sha1-EtSj3U5o4Lec6428hBc66A2RykQ=",
       "dev": true
     },
-    "isarray": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
-      "integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE="
-    },
     "isexe": {
       "version": "2.0.0",
-      "resolved": "https://verdaccio.lossless.one/isexe/-/isexe-2.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
       "integrity": "sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=",
       "dev": true
     },
@@ -950,7 +941,7 @@
     },
     "jsonfile": {
       "version": "4.0.0",
-      "resolved": "https://verdaccio.lossless.one/jsonfile/-/jsonfile-4.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-4.0.0.tgz",
       "integrity": "sha1-h3Gq4HmbZAdrdmQPygWPnBDjPss=",
       "dev": true,
       "requires": {
@@ -1051,7 +1042,7 @@
     },
     "minimatch": {
       "version": "3.0.4",
-      "resolved": "https://verdaccio.lossless.one/minimatch/-/minimatch-3.0.4.tgz",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
       "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
       "dev": true,
       "requires": {
@@ -1115,7 +1106,7 @@
     },
     "once": {
       "version": "1.4.0",
-      "resolved": "https://verdaccio.lossless.one/once/-/once-1.4.0.tgz",
+      "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
       "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
       "dev": true,
       "requires": {
@@ -1231,7 +1222,7 @@
     },
     "path-is-absolute": {
       "version": "1.0.1",
-      "resolved": "https://verdaccio.lossless.one/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
       "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18=",
       "dev": true
     },
@@ -1253,11 +1244,6 @@
       "integrity": "sha1-uULm1L3mUwBe9rcTYd74cn0GReA=",
       "dev": true
     },
-    "process-nextick-args": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.0.tgz",
-      "integrity": "sha512-MtEC1TqN0EU5nephaJ4rAtThHtC86dNN9qCuEhtshvpVBkAW5ZO7BASN9REnF9eoXGcRub+pFuKEpOHE+HbEMw=="
-    },
     "pump": {
       "version": "3.0.0",
       "resolved": "https://verdaccio.lossless.one/pump/-/pump-3.0.0.tgz",
@@ -1269,17 +1255,13 @@
       }
     },
     "readable-stream": {
-      "version": "2.3.6",
-      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
-      "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
+      "version": "3.5.0",
+      "resolved": "https://verdaccio.lossless.one/readable-stream/-/readable-stream-3.5.0.tgz",
+      "integrity": "sha512-gSz026xs2LfxBPudDuI41V1lka8cxg64E66SGe78zJlsUofOg/yqwezdIcdfwik6B4h8LFmWPA9ef9X3FiNFLA==",
       "requires": {
-        "core-util-is": "~1.0.0",
-        "inherits": "~2.0.3",
-        "isarray": "~1.0.0",
-        "process-nextick-args": "~2.0.0",
-        "safe-buffer": "~5.1.1",
-        "string_decoder": "~1.1.1",
-        "util-deprecate": "~1.0.1"
+        "inherits": "^2.0.3",
+        "string_decoder": "^1.1.1",
+        "util-deprecate": "^1.0.1"
       }
     },
     "require-directory": {
@@ -1295,9 +1277,9 @@
       "dev": true
     },
     "resolve": {
-      "version": "1.12.0",
-      "resolved": "https://verdaccio.lossless.one/resolve/-/resolve-1.12.0.tgz",
-      "integrity": "sha512-B/dOmuoAik5bKcD6s6nXDCjzUKnaDvdkRyAk6rsmsKLipWj4797iothd7jmmUhWTfinVMU+wc56rYKsit2Qy4w==",
+      "version": "1.15.0",
+      "resolved": "https://verdaccio.lossless.one/resolve/-/resolve-1.15.0.tgz",
+      "integrity": "sha512-+hTmAldEGE80U2wJJDC1lebb5jWqvTYAfm3YZ1ckk1gBr0MnCqUKlwK1e+anaFljIl+F5tR5IoZcm4ZDA1zMQw==",
       "dev": true,
       "requires": {
         "path-parse": "^1.0.6"
@@ -1323,9 +1305,9 @@
       }
     },
     "safe-buffer": {
-      "version": "5.1.2",
-      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
-      "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
+      "version": "5.2.0",
+      "resolved": "https://verdaccio.lossless.one/safe-buffer/-/safe-buffer-5.2.0.tgz",
+      "integrity": "sha512-fZEwUGbVl7kouZs1jCdMLdt95hdIv0ZeHg6L7qPeciMZhZ+/gdesW4wgTARkrFWEpspjEATAzUGPG8N2jJiwbg=="
     },
     "semver": {
       "version": "5.7.1",
@@ -1376,7 +1358,7 @@
     },
     "source-map": {
       "version": "0.6.1",
-      "resolved": "https://verdaccio.lossless.one/source-map/-/source-map-0.6.1.tgz",
+      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
       "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
       "dev": true
     },
@@ -1392,7 +1374,7 @@
     },
     "sprintf-js": {
       "version": "1.0.3",
-      "resolved": "https://verdaccio.lossless.one/sprintf-js/-/sprintf-js-1.0.3.tgz",
+      "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
       "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=",
       "dev": true
     },
@@ -1407,11 +1389,11 @@
       }
     },
     "string_decoder": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
-      "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+      "version": "1.3.0",
+      "resolved": "https://verdaccio.lossless.one/string_decoder/-/string_decoder-1.3.0.tgz",
+      "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
       "requires": {
-        "safe-buffer": "~5.1.0"
+        "safe-buffer": "~5.2.0"
       }
     },
     "strip-ansi": {
@@ -1472,9 +1454,9 @@
       "dev": true
     },
     "tslint": {
-      "version": "5.20.0",
-      "resolved": "https://verdaccio.lossless.one/tslint/-/tslint-5.20.0.tgz",
-      "integrity": "sha512-2vqIvkMHbnx8acMogAERQ/IuINOq6DFqgF8/VDvhEkBqQh/x6SP0Y+OHnKth9/ZcHQSroOZwUQSN18v8KKF0/g==",
+      "version": "6.0.0",
+      "resolved": "https://verdaccio.lossless.one/tslint/-/tslint-6.0.0.tgz",
+      "integrity": "sha512-9nLya8GBtlFmmFMW7oXXwoXS1NkrccqTqAtwXzdPV9e2mqSEvCki6iHL/Fbzi5oqbugshzgGPk7KBb2qNP1DSA==",
       "dev": true,
       "requires": {
         "@babel/code-frame": "^7.0.0",
@@ -1488,7 +1470,7 @@
         "mkdirp": "^0.5.1",
         "resolve": "^1.3.2",
         "semver": "^5.3.0",
-        "tslib": "^1.8.0",
+        "tslib": "^1.10.0",
         "tsutils": "^2.29.0"
       }
     },
@@ -1521,7 +1503,7 @@
     },
     "universalify": {
       "version": "0.1.2",
-      "resolved": "https://verdaccio.lossless.one/universalify/-/universalify-0.1.2.tgz",
+      "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
       "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg==",
       "dev": true
     },
@@ -1541,7 +1523,7 @@
     },
     "which": {
       "version": "1.3.1",
-      "resolved": "https://verdaccio.lossless.one/which/-/which-1.3.1.tgz",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
       "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
       "dev": true,
       "requires": {
@@ -1603,7 +1585,7 @@
     },
     "wrappy": {
       "version": "1.0.2",
-      "resolved": "https://verdaccio.lossless.one/wrappy/-/wrappy-1.0.2.tgz",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
       "dev": true
     },
diff --git a/package.json b/package.json
index 29611c3..2dc703f 100644
--- a/package.json
+++ b/package.json
@@ -15,15 +15,15 @@
     "@gitzone/tsbuild": "^2.1.17",
     "@gitzone/tsrun": "^1.2.8",
     "@gitzone/tstest": "^1.0.28",
-    "@pushrocks/tapbundle": "^3.0.13",
-    "@types/node": "^12.11.5",
-    "tslint": "^5.20.0",
+    "@pushrocks/tapbundle": "^3.2.0",
+    "@types/node": "^13.7.0",
+    "tslint": "^6.0.0",
     "tslint-config-prettier": "^1.18.0"
   },
   "dependencies": {
-    "@pushrocks/smartdelay": "^2.0.3",
+    "@pushrocks/smartdelay": "^2.0.6",
     "@pushrocks/smarterror": "^2.0.1",
-    "@pushrocks/smarthash": "^2.0.6",
+    "@pushrocks/smarthash": "^2.1.6",
     "@pushrocks/smartpromise": "^3.0.6",
     "@pushrocks/smarttime": "^3.0.12"
   },
@@ -38,4 +38,4 @@
     "npmextra.json",
     "readme.md"
   ]
-}
+}
\ No newline at end of file
diff --git a/readme.md b/readme.md
index 8758a21..d76d54c 100644
--- a/readme.md
+++ b/readme.md
@@ -8,7 +8,7 @@ cache things in smart ways
 * [docs (typedoc)](https://pushrocks.gitlab.io/smartcache/)
 
 ## Status for master
-[![build status](https://gitlab.com/pushrocks/smartcache/badges/master/build.svg)](https://gitlab.com/pushrocks/smartcache/commits/master)
+[![pipeline status](https://gitlab.com/pushrocks/smartcache/badges/master/pipeline.svg)](https://gitlab.com/pushrocks/smartcache/commits/master)
 [![coverage report](https://gitlab.com/pushrocks/smartcache/badges/master/coverage.svg)](https://gitlab.com/pushrocks/smartcache/commits/master)
 [![npm downloads per month](https://img.shields.io/npm/dm/@pushrocks/smartcache.svg)](https://www.npmjs.com/package/@pushrocks/smartcache)
 [![Known Vulnerabilities](https://snyk.io/test/npm/@pushrocks/smartcache/badge.svg)](https://snyk.io/test/npm/@pushrocks/smartcache)
@@ -18,6 +18,11 @@ cache things in smart ways
 
 ## Usage
 
+
+## Contribution
+
+We are always happy for code contributions. If you are not the code contributing type that is ok. Still, maintaining Open Source repositories takes considerable time and thought. If you like the quality of what we do and our modules are useful to you we would appreciate a little monthly contribution: You can [contribute one time](https://lossless.link/contribute-onetime) or [contribute monthly](https://lossless.link/contribute). :)
+
 For further information read the linked docs at the top of this readme.
 
 > MIT licensed | **©** [Lossless GmbH](https://lossless.gmbh)
diff --git a/test/test.ts b/test/test.ts
index 219dbfe..f6fa4cb 100644
--- a/test/test.ts
+++ b/test/test.ts
@@ -13,7 +13,7 @@ tap.test('try to get async responses', async () => {
   const getResponse = async () => {
     const response = await smartcacheInstance
       .cacheReturn(async () => {
-        console.log('function ran');
+        console.log('function 1 ran');
         return 'hello';
       }, 1000)
       .catch(err => {
@@ -27,7 +27,7 @@ tap.test('try to get async responses', async () => {
     const response = await smartcacheInstance
       .cacheReturn(async () => {
         console.log('function 2 ran');
-        return 'hello';
+        return 'hello there!';
       }, 1000)
       .catch(err => {
         console.log(err);
@@ -36,13 +36,13 @@ tap.test('try to get async responses', async () => {
     console.log(response);
   };
 
-  getResponse();
-  getResponse();
-  getResponse2();
-  getResponse2();
-  await smartdelay.delayFor(1000).then(async () => {
+  await getResponse();
+  await getResponse();
+  await getResponse2();
+  await getResponse2();
+  await smartdelay.delayFor(2000).then(async () => {
     await getResponse();
-    // getResponse2();
+    await getResponse2();
   });
 });
 
diff --git a/ts/smartcache.classes.smartcache.ts b/ts/smartcache.classes.smartcache.ts
index f9e326f..2a84479 100644
--- a/ts/smartcache.classes.smartcache.ts
+++ b/ts/smartcache.classes.smartcache.ts
@@ -5,8 +5,8 @@ export class SmartCache {
   private _cacheManager = new CacheManager();
 
   async cacheReturn(asyncCachedFuncArg: () => Promise<any>, cacheDuration: number = 5000) {
-    let callStack: string = new plugins.smarterror.SmartError('').cleanFullStack;
-    let callHash = plugins.smarthash.sha256FromStringSync(callStack);
+    const callStack: string = new plugins.smarterror.SmartError('Cache Creation Point').cleanFullStack.split('\n')[2];
+    const callHash = plugins.smarthash.sha256FromStringSync(callStack);
 
     // console.log(callHash);
     if (
@@ -17,7 +17,7 @@ export class SmartCache {
       return this._cacheManager.getCache(callHash).cachedObject;
     } else {
       this._cacheManager.announceCache(callHash, cacheDuration);
-      let newCachedObject = await asyncCachedFuncArg();
+      const newCachedObject = await asyncCachedFuncArg();
       this._cacheManager.setCache(callHash, newCachedObject, cacheDuration);
       return newCachedObject;
     }