--- /dev/null
+<!--
+ Copyright 2016 Soren Stoutner <soren@stoutner.com>.
+
+ This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
+
+ Privacy Browser is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ Privacy Browser is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Privacy Browser. If not, see <http://www.gnu.org/licenses/>. -->
+
+<html>
+<head>
+<!-- We have to make an image into its own block to center it. -->
+<style>
+ h3 {
+ color: 0D4781;
+ }
+
+ img.center {
+ display: block;
+ margin-left: auto;
+ margin-right: auto;
+ }
+</style>
+</head>
+
+<body>
+<h3>JavaScript Is Powerful</h3>
+
+<p>Back in the early days of the internet, web pages were static, meaning they they contained text and images that displayed on the screen
+ but didn't change or interact with the user. Of course, only so much that is interesting can happen with static content.
+ Several different technologies were developed to facilitate dynamic web pages. JavaScript was one of these technologies.</p>
+
+<p>JavaScript is a programming language. Many web servers host programs written in JavaScript, which are sent to devices as part of the web page.
+ The device runs the JavaScript on its local processor and follows the commands of the program, which can animate images on the website,
+ popup a menu, and do many other useful things.</p>
+
+<h3>JavaScript Is Dangerous</h3>
+<p>Of course, the concept of running arbitrary programs from a website is potentially dangerous. So there are limitations placed on JavaScript
+ to keep it from doing things like installing viruses on the device. However, it turns out that these limitations are overly broad.
+ Below is a screenshot from <a href="http://webkay.robinlinus.com">webkay</a>, which is a website that demonstrates the type of information that
+ JavaScript can produce about a device. <a href="http://www.browserleaks.com/">Browser Leaks</a> is another good resource.</p>
+
+<p><img class="center" src="images/webkay.png" height="640" width="360"></p>
+
+<p>For privacy purposes, the ideal would be to browse the internet with JavaScript disabled. However, there are some websites that legitimately require
+ JavaScript to accomplish their purposes and others that don't work correctly without JavaScript even though they could be programmed to do so.
+ Privacy Browser addresses this by making it easy to toggle JavaScript on and off. Tapping the privacy shield will toggle it between blue
+ <img src="images/privacy_browser.png" height="16" width="16"> or yellow <img src="images/warning.png" height="16" width="16"> (both of which indicate
+ that JavaScript is disabled) and red <img src="images/javascript_enabled.png" height="16" width="16"> (JavaScript enabled) and and reload the website.
+ Looking at the different information <a href="http://webkay.robinlinus.com">webkay</a> can collect with JavaScript enabled and disabled is informative.</p>
+
+<p>Browsing the internet with JavaScript disabled, and only enabling it if needed, goes a long way to protecting user privacy. In addition, JavaScript
+ is used to load much of the annoying advertisements and extra cruft that comes along with most modern websites. With it disabled, websites will
+ load faster, consume less network traffic, and only contain less annoying advertisements, instead of those that do things like cover up the text of the
+ entire web page.</p>
+</body>
+</html>
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projects / PrivacyBrowserAndroid.git / blobdiff