Implement --timeout option

Passes the -t/--timeout option from the command line to the
printer, and uses it to set the timeout when puppeteer is
loading pages.

See #28, #37

bin/paged

@@ -115,6 +115,7 @@ if (typeof input === "string") {
     allowedPaths: program.allowedPaths,
     allowedDomains: program.allowedDomains,
     additionalScripts: program.additionalScript,
+    timeout: program.timeout,
   };
 
   if (program.forceTransparentBackground) {

src/printer.js

@@ -26,6 +26,7 @@ class Printer extends EventEmitter {
     this.ignoreHTTPSErrors = options.ignoreHTTPSErrors;
     this.browserWSEndpoint = options.browserEndpoint;
     this.overrideDefaultBackgroundColor = options.overrideDefaultBackgroundColor;
+    this.timeout = options.timeout;
 
     this.pages = [];
   }
@@ -63,6 +64,9 @@ class Printer extends EventEmitter {
     }
 
     const page = await this.browser.newPage();
+    if (this.timeout) {
+      page.setDefaultTimeout(this.timeout);
+    }
 
     if (this.overrideDefaultBackgroundColor) {
       page._client.send('Emulation.setDefaultBackgroundColorOverride', { color: this.overrideDefaultBackgroundColor });