Updated Frequently Asked Questions (markdown)

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* [Can I load a pdf from another server (cross domain request)?](#faq-xhr)
* [Can I specify different PDF in the default viewer?](#file)
* [Can I load a PDF from another server (cross domain request)?](#faq-xhr)
* [What browsers are supported?](#faq-support)
* [What browsers have extensions (and where can I find install procedures)?](#faq-extensions)
* [I know JavaScript and want to contribute to the project. How do I start?](#faq-contrib)
<a name="file"></a>
## Can I specify different PDF in the default viewer?
You can modify DEFAULT_URL variable in the web/viewer.js file. Or, you can append the `?file=` query string to the viewer URL, e.g. `http://mozilla.github.com/pdf.js/web/viewer.html?file=compressed.tracemonkey-pldi-09.pdf`.
<a name="faq-xhr"></a>
## Can I load a pdf from another server (cross domain request)?
Not by default, but it is possible. Pdf.js runs with the same permissions as any other javascript, which means it cannot do cross origin requests (see [Same origin policy](http://en.wikipedia.org/wiki/Same_origin_policy) and [example](https://gist.github.com/3452072)). There are some possible ways to get around this such as using [CORS](http://enable-cors.org/) or setting up a proxy on your server that will feed pdf.js the pdf. Both workarounds are out of the scope of the pdf.js project and we will not provide code to do either.
## Can I load a PDF from another server (cross domain request)?
Not by default, but it is possible. PDF.js runs with the same permissions as any other javascript, which means it cannot do cross origin requests (see [Same origin policy](http://en.wikipedia.org/wiki/Same_origin_policy) and [example](https://gist.github.com/3452072)). There are some possible ways to get around this such as using [CORS](http://enable-cors.org/) or setting up a proxy on your server that will feed pdf.js the pdf. Both workarounds are out of the scope of the pdf.js project and we will not provide code to do either.
<a name="faq-support"></a>
## What browsers are supported?