# PDF not loading issue using URL

**URL:** <https://pdfjs.community/t/pdf-not-loading-issue-using-url/2139>\
**Category:** Technical Support\
**Created:** [November 2, 2022, 4:41pm UTC](https://pdfjs.community/t/pdf-not-loading-issue-using-url/2139 "2022-11-02T16:41:34Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![anurag.kurmi](https://avatars.discourse-cdn.com/v4/letter/a/e495f1/32.png) [@anurag.kurmi](https://pdfjs.community/u/anurag.kurmi)\
**Post date:** [November 2, 2022, 4:41pm UTC](https://pdfjs.community/t/pdf-not-loading-issue-using-url/2139/1 "2022-11-02T16:41:34Z")

</div>

**Which product are you using?**  
PDF.js Express Plus

**PDF.js Express Version**  
8.7.0

**Detailed description of issue**  
When I am passing this url of my pdf file which is this [https://x9oo-fwyq-gkdq.n7.xano.io/vault/cIQOyqj4/aq1ODkTCEIHvsYY7wZn5nZNjVTo/qCt-vA../sample.pdf](https://x9oo-fwyq-gkdq.n7.xano.io/vault/cIQOyqj4/aq1ODkTCEIHvsYY7wZn5nZNjVTo/qCt-vA../sample.pdf) my viewer is not able to load that file and giving me the default page not found error from my theme. I tried both the ways of loading pdf file from URL as you can see in below code snippet.

 ![image](https://canada1.discourse-cdn.com/flex031/uploads/pdfjscommunity/original/2X/a/a5afbda819c63a0a6841debd98ad4e6e3eef182f.png)

**Expected behaviour**  
The PDF provided from URL should be loaded fine because the pdf file is publicly accessible.

**Does your issue happen with every document, or just one?**  
All documents

**Link to document**

> **[sample.pdf](https://storage.googleapis.com/x9oo-fwyq-gkdq.n7.xano.io/vault/cIQOyqj4/aq1ODkTCEIHvsYY7wZn5nZNjVTo/qCt-vA../sample.pdf)**
>
> 2.96 KB

**Code snippet**  
WebViewer(  
{  
// path: ‘/webviewer/lib’,  
initialDoc: ‘[https://x9oo-fwyq-gkdq.n7.xano.io/vault/cIQOyqj4/aq1ODkTCEIHvsYY7wZn5nZNjVTo/qCt-vA../sample.pdf](https://x9oo-fwyq-gkdq.n7.xano.io/vault/cIQOyqj4/aq1ODkTCEIHvsYY7wZn5nZNjVTo/qCt-vA../sample.pdf)’,  
},  
viewer.current  
).then((instance) =\> {  
// instance.UI.loadDocument(  
// ‘[https://x9oo-fwyq-gkdq.n7.xano.io/vault/cIQOyqj4/aq1ODkTCEIHvsYY7wZn5nZNjVTo/qCt-vA../sample.pdf](https://x9oo-fwyq-gkdq.n7.xano.io/vault/cIQOyqj4/aq1ODkTCEIHvsYY7wZn5nZNjVTo/qCt-vA../sample.pdf)’,  
// { filename: ‘sample.pdf’ }  
// );  
}

---

<div class="post-metadata">

**Author:** ![kkim](https://avatars.discourse-cdn.com/v4/letter/k/3ab097/32.png) [@kkim](https://pdfjs.community/u/kkim)\
**Post date:** [November 2, 2022, 8:37pm UTC](https://pdfjs.community/t/pdf-not-loading-issue-using-url/2139/3 "2022-11-02T20:37:00Z")

</div>

Hi [anurag.kurmi](https://pdfjs.community/u/anurag.kurmi),

Thank you for contacting pdf.js express forums,

I noticed that downloading the file and opening as a local file will load fine. In our separate demo, [JavaScript PDF Viewer Demo](https://pdfjs.express/samples/viewing/viewing/)

I get the following error when loading this url:  
`https://x9oo-fwyq-gkdq.n7.xano.io/vault/cIQOyqj4/aq1ODkTCEIHvsYY7wZn5nZNjVTo/qCt-vA../sample.pdf`

 ![image](https://canada1.discourse-cdn.com/flex031/uploads/pdfjscommunity/original/2X/0/015851224a8df8c63ee3c4d6f8e86c4bab90c17d.png)

But when I try the resolved URL:  
`https://storage.googleapis.com/x9oo-fwyq-gkdq.n7.xano.io/vault/cIQOyqj4/aq1ODkTCEIHvsYY7wZn5nZNjVTo/qCt-vA../sample.pdf`  
Then it loads as expected:

 ![image](https://canada1.discourse-cdn.com/flex031/uploads/pdfjscommunity/original/2X/d/d5e774806b892bec5288c4de3138327910ee529a.jpeg)

As a side note, I also tried the 1st url in our sister product PDFTron WebViewer ([PDFTron WebViewer Demo: JavaScript PDF Viewer Demo](https://www.pdftron.com/webviewer/demo/)), and this is the error message:

 ![image](https://canada1.discourse-cdn.com/flex031/uploads/pdfjscommunity/original/2X/9/9bc1b6b540572f54c9744b33cce784f1f61de5e5.jpeg)

Please use the domain ‘[storage.googleapis.com](http://storage.googleapis.com)’ because this is likely due to preventing unsafe url redirecting when loading the document.

Best Regards,  
Kevin Kim

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