# "Cannot load app" error when pressing the back button on Firefox

**URL:** https://meta.discourse.org/t/cannot-load-app-error-when-pressing-the-back-button-on-firefox/85776
**Category:** Bug
**Created:** [April 20, 2018, 5:11am UTC](https://meta.discourse.org/t/cannot-load-app-error-when-pressing-the-back-button-on-firefox/85776 "2018-04-20T05:11:23Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![ckshen](https://avatars.discourse-cdn.com/v4/letter/c/ad7895/32.png) [@ckshen](https://meta.discourse.org/u/ckshen)
#### Post date: [April 20, 2018, 5:11am UTC](https://meta.discourse.org/t/cannot-load-app-error-when-pressing-the-back-button-on-firefox/85776/1 "2018-04-20T05:11:23Z")

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For the past few weeks when I try to use the “Back Button” to get back to Discourse after visiting any other site, I get a white background with this message:

**Cannot load app**

**It looks like you are offline! Please check your network connection and try again.**

I can use the Refresh Button and everything goes back to normal. Windows 10, FireFox 59.0.2

Firefox problem, or Discourse problem?

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### Author: ![itsbhanusharma](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/itsbhanusharma/32/180717_2.png) [@itsbhanusharma](https://meta.discourse.org/u/itsbhanusharma)
#### Post date: [April 20, 2018, 5:18am UTC](https://meta.discourse.org/t/cannot-load-app-error-when-pressing-the-back-button-on-firefox/85776/2 "2018-04-20T05:18:05Z")

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It is related to this topic.

> [@"Cannot Load App".... in Firefox sometimes. Refresh fixes it](https://meta.discourse.org/t/cannot-load-app-in-firefox-sometimes-refresh-fixes-it/85258):
>
> Hello, I run a standard Nginx reverse proxy with instructions from one of the official tutorials with DigitalOcean. In the past few weeks, I started to notice (and others, too) random “Cannot Load App” messages when visiting the forum. Just randomly and semi-rarely. Refreshing with F5 instantly shows the site again. Anyone have any clues? EDIT: Plugins –

It was a bug in mozilla firefox and should be fixed in the next firefox update

> [@"Cannot Load App".... in Firefox sometimes. Refresh fixes it](https://meta.discourse.org/t/cannot-load-app-in-firefox-sometimes-refresh-fixes-it/85258/15):
>
> Firefox team confirms it’s fixed in Firefox for next release:

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### Author: ![codinghorror](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/codinghorror/32/110067_2.png) [@codinghorror](https://meta.discourse.org/u/codinghorror)
#### Post date: [April 20, 2018, 5:20am UTC](https://meta.discourse.org/t/cannot-load-app-error-when-pressing-the-back-button-on-firefox/85776/3 "2018-04-20T05:20:48Z")

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