diff --git a/README.md b/README.md
index 41b83e7c..e9e357a0 100644
--- a/README.md
+++ b/README.md
@@ -97,7 +97,7 @@ ReDoc makes use of the following [vendor extensions](http://swagger.io/specifica
   * **number**: A fixed number of pixels to be used as offset;
   * **selector**: selector of the element to be used for specifying the offset. The distance from the top of the page to the element's bottom will be used as offset;
   * **function**: A getter function. Must return a number representing the offset (in pixels);
-* `suppress-warnings` - if set, warnings are not rendered at the top of page (they still are logged to the console).
+* `suppress-warnings` - if set, warnings are not rendered at the top of documentation (they still are logged to the console).
 
 ## Advanced usage
 Instead of adding `spec-url` attribute to the `<redoc>` element you can initialize ReDoc via globally exposed `Redoc` object:
@@ -105,12 +105,13 @@ Instead of adding `spec-url` attribute to the `<redoc>` element you can initiali
 Redoc.init(specUrl, options)
 ```
 
-`options` is javascript object with camel-cased version of options names as the keys. For example:
+`options` is javascript object with camel-cased version of options names as the keys, e.g.:
 ```js
 Redoc.init('http://petstore.swagger.io/v2/swagger.json', {
   scrollYOffset: 50
 })
 ```
+
 -----------
 ## Running locally
 1. Clone repository
diff --git a/build/run_tests.js b/build/run_tests.js
index 40b488fa..dc8b232c 100755
--- a/build/run_tests.js
+++ b/build/run_tests.js
@@ -4,10 +4,22 @@
 require('shelljs/global');
 set('-e');
 
+function isPR() {
+  return process.env.TRAVIS_PULL_REQUEST && process.env.TRAVIS_PULL_REQUEST !== 'false';
+}
+
 if (process.env.JOB === 'e2e-guru') {
+  if (isPR()) {
+    console.log('Skiping E2E tests on PR');
+    return;
+  }
   exec('npm run e2e');
 } else {
   exec('npm run unit');
+  if (isPR()) {
+    console.log('Skiping E2E tests on PR');
+    return;
+  }
   console.log('Starting Basic E2E');
   exec('npm run e2e');
 }
diff --git a/lib/index.js b/lib/index.js
index 8e0aa90f..620fc1af 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -1,8 +1,8 @@
 'use strict';
+import './components/Redoc/redoc-initial-styles.css!css';
 import 'dropkickjs/build/css/dropkick.css!css';
 import 'prismjs/themes/prism-dark.css!css';
 import 'hint.css/hint.base.css!css';
-import './components/Redoc/redoc-initial-styles.css!css';
 import { redocVersion } from './version.js';
 
 import { Redoc } from './components/index';
diff --git a/lib/utils/SpecManager.ts b/lib/utils/SpecManager.ts
index 74f4d347..080e52e0 100644
--- a/lib/utils/SpecManager.ts
+++ b/lib/utils/SpecManager.ts
@@ -42,16 +42,21 @@ export class SpecManager {
 
   /* calculate common used values */
   init() {
+    let urlParts = this._url ? urlParse(this._url) : {};
+    let schemes = this._schema.schemes;
     let protocol;
-    if (!this._schema.schemes || !this._schema.schemes.length) {
-      protocol = this._url ? urlParse(this._url).protocol : 'http';
+    if (!schemes || !schemes.length) {
+      // url parser incudles ':' in protocol so remove it
+      protocol = urlParts.protocol ? urlParts.protocol.slice(0, -1) : 'http';
     } else {
-      protocol = this._schema.schemes[0];
-      if (protocol === 'http' && this._schema.schemes.indexOf('https') >= 0) {
+      protocol = schemes[0];
+      if (protocol === 'http' && schemes.indexOf('https') >= 0) {
         protocol = 'https';
       }
     }
-    this.apiUrl = protocol + '://' + this._schema.host + this._schema.basePath;
+
+    let host = this._schema.host || urlParts.host;
+    this.apiUrl = protocol + '://' + host + this._schema.basePath;
     if (this.apiUrl.endsWith('/')) {
       this.apiUrl = this.apiUrl.substr(0, this.apiUrl.length - 1);
     }
diff --git a/package.json b/package.json
index 3c7d2f69..e123f48f 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "redoc",
   "description": "Swagger-generated API Reference Documentation",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "repository": {
     "type": "git",
     "url": "git://github.com/Rebilly/ReDoc"
diff --git a/tests/unit/SpecManager.spec.ts b/tests/unit/SpecManager.spec.ts
index 869392d1..8bdfedd6 100644
--- a/tests/unit/SpecManager.spec.ts
+++ b/tests/unit/SpecManager.spec.ts
@@ -59,6 +59,20 @@ describe('Utils', () => {
         specMgr.apiUrl.should.be.equal('https://petstore.swagger.io/v2');
       });
 
+      it('should substitute api scheme when spec schemes are undefined', () => {
+        specMgr._schema.schemes = undefined;
+        specMgr._url = 'https://petstore.swagger.io/v2';
+        specMgr.init();
+        specMgr.apiUrl.should.be.equal('https://petstore.swagger.io/v2');
+      });
+
+      it('should substitute api host when spec host is undefined', () => {
+        specMgr._schema.host = undefined;
+        specMgr._url = 'https://petstore.swagger.io/v2';
+        specMgr.init();
+        specMgr.apiUrl.should.be.equal('https://petstore.swagger.io/v2');
+      });
+
       describe('byPointer method', () => {
         it('should return correct schema part', ()=> {
           let part = specMgr.byPointer('/tags/3');