# Rebuilding caused a JavaScript error on load
**URL:** https://meta.discourse.org/t/rebuilding-caused-a-javascript-error-on-load/45975
**Category:** Support
**Created:** [June 17, 2016, 9:00pm UTC](https://meta.discourse.org/t/rebuilding-caused-a-javascript-error-on-load/45975 "2016-06-17T21:00:34Z")
**Posts on this page:** 10
**Page:** 1
### Author:  [@fefrei](https://meta.discourse.org/u/fefrei)
#### Post date: [June 17, 2016, 9:00pm UTC](https://meta.discourse.org/t/rebuilding-caused-a-javascript-error-on-load/45975/1 "2016-06-17T21:00:34Z")
After rebuilding my site a few minutes ago, Discourse no longer loads.
I get this error in the JavaScript console:
I’m down to these plugins, and the error is still there:
```
- git clone https://github.com/discourse/docker_manager.git
- git clone https://github.com/discourse/discourse-spoiler-alert.git
- git clone https://github.com/discourse/discourse-data-explorer.git
- git clone https://github.com/discourse/discourse-staff-notes
```
[Disabling all site customizations](https://meta.discourse.org/t/local-customizations-broke-site-on-upgrade-how-to-disable/28724/17) did not help, too.
I’m out of ideas, and my Discourse instance is down :sadpanda:
* * *
I should add that I am running on the ([latest](https://github.com/discourse/discourse/commit/a874890ab3afc55737a2a1a77af95c38920b89a6)) **beta** commit.
---
### Author:  [@codinghorror](https://meta.discourse.org/u/codinghorror)
#### Post date: [June 17, 2016, 9:25pm UTC](https://meta.discourse.org/t/rebuilding-caused-a-javascript-error-on-load/45975/2 "2016-06-17T21:25:12Z")
Odd, I just rebuilt both [discourse.codinghorror.com](http://discourse.codinghorror.com) and [talk.commonmark.org](http://talk.commonmark.org) to latest, and they load fine with these plugins:
- data-explorer
- docker-manager
Plus spoiler and staff notes are used here on meta.
What’s the default language used there? Any unusual site settings?
---
### Author:  [@zogstrip](https://meta.discourse.org/u/zogstrip)
#### Post date: [June 17, 2016, 9:27pm UTC](https://meta.discourse.org/t/rebuilding-caused-a-javascript-error-on-load/45975/3 "2016-06-17T21:27:46Z")
Can you try **without** the `spoiler-alert` plugin?
---
### Author:  [@gerhard](https://meta.discourse.org/u/gerhard)
#### Post date: [June 17, 2016, 9:27pm UTC](https://meta.discourse.org/t/rebuilding-caused-a-javascript-error-on-load/45975/4 "2016-06-17T21:27:46Z")
Try removing the spoiler-alert plugin. It [was updated today](https://github.com/discourse/discourse-spoiler-alert/commit/1f0c2685ef4ca9c83e5818dbbba0308a1a8617ec) and I guess that change is not compatible with the beta branch.
---
### Author:  [@fefrei](https://meta.discourse.org/u/fefrei)
#### Post date: [June 17, 2016, 9:28pm UTC](https://meta.discourse.org/t/rebuilding-caused-a-javascript-error-on-load/45975/5 "2016-06-17T21:28:15Z")
That worked (I haven’t singled it out yet, but removing _all_ official plugins worked).
I’m adding all other plugins back in to check whether this is really the cause… ⌛
---
### Author:  [@codinghorror](https://meta.discourse.org/u/codinghorror)
#### Post date: [June 17, 2016, 9:30pm UTC](https://meta.discourse.org/t/rebuilding-caused-a-javascript-error-on-load/45975/6 "2016-06-17T21:30:10Z")
This text will be blurred
Spoiler alert seems to be working ok here though.
---
### Author:  [@fefrei](https://meta.discourse.org/u/fefrei)
#### Post date: [June 17, 2016, 9:30pm UTC](https://meta.discourse.org/t/rebuilding-caused-a-javascript-error-on-load/45975/7 "2016-06-17T21:30:32Z")
But you are probably running `tests-passed`, right?
---
### Author:  [@codinghorror](https://meta.discourse.org/u/codinghorror)
#### Post date: [June 17, 2016, 9:31pm UTC](https://meta.discourse.org/t/rebuilding-caused-a-javascript-error-on-load/45975/8 "2016-06-17T21:31:24Z")
I see this is something for @tgxworld to look at.
---
### Author:  [@fefrei](https://meta.discourse.org/u/fefrei)
#### Post date: [June 17, 2016, 9:35pm UTC](https://meta.discourse.org/t/rebuilding-caused-a-javascript-error-on-load/45975/9 "2016-06-17T21:35:34Z")
I can confirm this is caused by the Spoiler plugin. Thanks a lot, @gerhard! 🙂
---
### Author:  [@JammyDodger](https://meta.discourse.org/u/JammyDodger)
#### Post date: [June 8, 2024, 12:45pm UTC](https://meta.discourse.org/t/rebuilding-caused-a-javascript-error-on-load/45975/10 "2024-06-08T12:45:37Z")
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