# How to enable range requests on the WebViewer? Right now the viewer waits for the whole file to download

**URL:** <https://pdfjs.community/t/how-to-enable-range-requests-on-the-webviewer-right-now-the-viewer-waits-for-the-whole-file-to-download/549>\
**Category:** Technical Support\
**Tags:** pdfjs-express\
**Created:** [March 1, 2021, 6:31pm UTC](https://pdfjs.community/t/how-to-enable-range-requests-on-the-webviewer-right-now-the-viewer-waits-for-the-whole-file-to-download/549 "2021-03-01T18:31:17Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Logan](https://yyz1.discourse-cdn.com/flex031/user_avatar/pdfjs.community/logan/32/13_2.png) [@Logan](https://pdfjs.community/u/Logan)\
**Post date:** [March 1, 2021, 6:43pm UTC](https://pdfjs.community/t/how-to-enable-range-requests-on-the-webviewer-right-now-the-viewer-waits-for-the-whole-file-to-download/549/2 "2021-03-01T18:43:34Z")

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Hey there!

This is a known issue that we haven’t had a chance to look at yet. We hope to investigate this very soon and push a fix ASAP.

I am going to close this as it is a duplicate of [Is it possible to partial rendering of pdf file? - #7 by Logan](https://pdfjs.community/t/is-it-possible-to-partial-rendering-of-pdf-file/372/7). Keep an eye on that thread for updates!

Thanks,  
Logan

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