es5 support

package-lock.json

@@ -171,6 +171,12 @@
       "integrity": "sha512-esk3CG25hRtHsVHm+LOjiSFYdw8be3uIY653WUwR43Bro914HSimPgPpqgajkhTJ0awK3RQfaIxP7zvbtCpcyg==",
       "dev": true
     },
+    "@types/node": {
+      "version": "8.0.19",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-8.0.19.tgz",
+      "integrity": "sha512-VRQB+Q0L3YZWs45uRdpN9oWr82meL/8TrJ6faoKT5tp0uub2l/aRMhtm5fo68h7kjYKH60f9/bay1nF7ZpTW5g==",
+      "dev": true
+    },
     "@types/node-forge": {
       "version": "0.6.10",
       "resolved": "https://registry.npmjs.org/@types/node-forge/-/node-forge-0.6.10.tgz",

package.json

@@ -20,6 +20,7 @@
     "@angular/compiler-cli": "5.2.0",
     "@ngtools/webpack": "1.10.2",
     "@types/lunr": "2.1.5",
+    "@types/node": "8.0.19",
     "@types/node-forge": "0.6.10",
     "@types/papaparse": "4.1.33",
     "@types/webcrypto": "^0.0.28",

src/global.d.ts

@@ -1,4 +1,2 @@
 declare function escape(s: string): string;
 declare function unescape(s: string): string;
-declare var require: any;
-declare var process: any;

tsconfig.json

@@ -4,8 +4,9 @@
     "noImplicitAny": true,
     "emitDecoratorMetadata": true,
     "experimentalDecorators": true,
-    "module": "es6",
+    "module": "commonjs",
-    "target": "ES2016",
+    "target": "es5",
+    "lib": ["es5", "es6", "dom"],
     "allowJs": true,
     "sourceMap": true,
     "types": [],