Phantomjs: 2.5.0-development: missing `window.localStorage`

Created on 10 Jan 2017 · 8Comments · Source: ariya/phantomjs

1. Which version of PhantomJS are you using? Tip: run `phantomjs --version`.

2.5.0-development

2. What steps will reproduce the problem?

i. Create a JavaScript file check-local-storage.js, such as:

'use strict';

var page = require('webpage').create();

page.open('http://example.com', function() {
  var ls = page.evaluate(function() {
    return String(window.localStorage);
  });

  console.log(ls);

  phantom.exit();
});

ii. Run the script with PhantomJS v2.5.0-development.

$ phantomjs --version
> 2.5.0-development

$ phantomjs check-local-storage.js
> null

As you can see, in 2.5.0-development window.localStorage is not a valid object and we can't use its methods – clear, getItem, setItem etc.

3. Which operating system are you using?

$ sw_vers

ProductName:    Mac OS X
ProductVersion: 10.12.2
BuildVersion:   16C67

4. Did you use binary PhantomJS or did you compile it from source?

The binary downloaded from https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-2.5.0-beta-macos.zip.

5. Please provide any additional information below.

With the latest stable version v2.1.1 installed via Homebrew, the code above prints the expected behavior. So, this bug was certainly introduced in v2.5.0-development.

$ phantomjs --version
> 2.1.1

$ phantomjs check-local-storage.js
> [object Storage]

Source

shinnn

Most helpful comment

Since 2.5 (or this commit https://github.com/ariya/phantomjs/commit/fc57497166b85678d5a6616019c8c21139b74d05) localStorage disabled by default. This change was introduced to make PhantomJS portable as much as possible. To enable localStorage you have to set its quota >= 0, e.g.:

phantomjs --local-storage-quota=5000

We also have plans on moving configuration options to a default configuration file, so you will need to specify default options once.

vitallium on 10 Jan 2017

👍3

All 8 comments

phantomjs --local-storage-quota=5000

We also have plans on moving configuration options to a default configuration file, so you will need to specify default options once.

vitallium on 10 Jan 2017

👍3

How will I be able to enable the localStorage via OpenQA.Selenium.PhantomJS?
I'm using the 2.5.0-development version for Selenium C# testing and the testing web application is causing issues as localStorage is disabled.

GopianiS on 23 Jan 2017

How to set local-storage-quota via Selenium WebDriver:

```c#
PhantomJSDriverService driverService = PhantomJSDriverService.CreateDefaultService();
driverService.LocalStorageQuota = 5000;

PhantomJSDriver driver = new PhantomJSDriver(driverService);
```

GopianiS on 24 Jan 2017

@GopianiS ghostdriver does not support local storage or session storage apis. see detro/ghostdriver#25 and detro/ghostdriver#26.

i don't see it in the w3c specification so you would have to follow https://github.com/SeleniumHQ/selenium/wiki/JsonWireProtocol. you can implement it by delegating to selenium atoms.

jesg on 24 Jan 2017

@Vitallium I have ran into this same issue, however, I am doing this through Selenium Webdriver. It seems that I need both --local-storage-quota and --local-storage-path. The quota alone did not work. Is this expected?

@GopianiS Sample code:

DesiredCapabilities phantomBilities = DesiredCapabilities.phantomjs();
phantomBilities.setCapability("phantomjs.cli.args",
            new String[] { "--ignore-ssl-errors=true", "--local-storage-quota=5000",
                "--local-storage-path=" + Files.createTempDirectory("PhantomLocalStorage-").toString() });
return new PhantomJSDriver(phantomBilities);