fix(render-page): ensure chromerenderer can handle raw filename as first arg to Page#render

Author: anulman

src/page.js

@@ -102,11 +102,13 @@ export class Page {
   async render(options = {}, ...args) {
     assert.ok(!this.isDestroyed && !this.isDestroying && this.isLoaded);
 
-    if (isString(options)) {
+    let pagePathParamKey = this.renderer.constructor.pagePathParamKey;
+
+    if (isString(pagePathParamKey) && isString(options)) {
       let filename = options;
 
       options = isPresent(args[0]) ? args[0] : {};
-      options.filename = filename;
+      options[pagePathParamKey] = filename;
     }
 
     if (isString(options.filename) && !isString(options.format)) {

src/renderers/chrome/index.js

@@ -17,6 +17,10 @@ export class ChromeRenderer extends Renderer {
     this._DEFAULT_BOOT_OPTIONS = value;
   }
 
+  static get pagePathParamKey() {
+    return 'path';
+  }
+
   constructor(attrs = {}) {
     super(attrs);
 

src/renderers/phantom/index.js

@@ -40,6 +40,10 @@ export class PhantomRenderer extends Renderer {
     return denodeify(request);
   }
 
+  static get pagePathParamKey() {
+    return 'filename';
+  }
+
   constructor(attrs = {}) {
     super(attrs);