The viewer.js can not take online PDF stream

[jonasyuandotcom]

The viewer.js can not take online PDF stream.

By default, viewer.js has:

var kDefaultURL = 'compressed.tracemonkey-pldi-09.pdf';

Now use PDF stream:
http://www.liferay.com/documents/31578/11925632/sample.pdf

as

var kDefaultURL = 'http://www.liferay.com/documents/31578/11925632/sample.pdf';

In FireFox 9.0.1 and Chrome 16.0.912.63 , it throws errors:

"
PDF.JS Build: 9161c2e
Message: Unexpected server response of 0.
".

[notmasteryet]

Related issues are #522, #586 and #842

[brendandahl]

As referenced in the above issues this is something that the user will have to fix on their own using a proxy or CORS.

[jonasyuandotcom]

Hi Brend,

what's the main reason that "the user will have to fix on their own using a proxy or CORS"?

It is important that the PDF could be coming from local (uploading), server as a file, server as stream like "http://".

As image URL, the PDF reader should support HTTP URL.

Thanks

[notmasteryet]

@jonasyuandotcom the cors allows you get the pdf using http from the same server. however the browser protects the user from getting/sending the data to foreign servers. Those servers must use http headers to bypass this restriction.

Since your server side proxy will be located on same server as a viewer cors will be okay with that.

[jonasyuandotcom]

@notmasteryet thanks. It works when using same server like

var kDefaultURL = '/pdf-reader-web/sample.pdf';

[brendandahl]

Hi Jonas,

We won't be implementing this on our end because it's not possible for us to implement because of browser security restrictions. See http://en.wikipedia.org/wiki/XMLHttpRequest#Cross-domain_requests

Brendan

[Dassine]

Hi @brendandahl

I was wondering if there is any update since 2011 ? Is it still impossible to fix the CORS problems ?

[timvandermeij]

Yes. See https://github.com/mozilla/pdf.js/wiki/Frequently-Asked-Questions#faq-xhr for more information.

[Dassine]

Thank you Tim !

[Dassine]

Hi @timvandermeij. Thanks for your response. I've tried many solutions but I'm still not enable to allow CORS on my web server. Do you have any git example ?

[yurydelendik]

@Dassine here you go http://mozilla.github.io/pdf.js/web/viewer.html?file=//async5.org/moz/pdfjs.pdf -- PDF Viewer loads http://async5.org/moz/pdfjs.pdf . Notice that async5.org allows mozilla.github.io to get files. Otherwise a web browser has to block accessing a remote file for security reasons. It is a standard practice on the web and there is nothing PDF.js can do to circumvent browsers security.

If you embedding browser control into desktop/mobile application, you can requests a binary data by using OS/Framework APIs and pass it to the PDF.js as Uint8Array.

[Dassine]

Thanks @yurydelendik for your links. I know that PDF.js doesn't manage CORS. I've tried the solutions sent by @timvandermeij and other but they failed. I'm looking for the right implementation/modifications solutions once the pdf.js repo downloaded. Thanks

[hashbyte]

@yurydelendik I am also having the issue of loading remote PDF file. But this error happens only in Chrome.
PDF.js v1.0.1040 (build: 997096f)
Message: Unexpected server response (0) while retrieving PDF "http://bhpr.hrsa.gov/healthworkforce/rnsurveys/rnsurveyfinal.pdf".

You can see that the PDF I try to load is on another server upon which I don't have any control. But still I wish to show this PDF on my viewer.js

I have not much experience with CORS but I created a least security crossdomain.xml file on my server but even then it doesn't work.