# Bug OP-2541 - [wiki] - preview button does not work anymore

Project: OpenProject
Status: closed
URL: https://community.openproject.org/work_packages/OP-2541

## Open points

_No work packages_

## Details

| Attribute | Value |
| --- | --- |
| Date |  |
| Priority | Medium |
| Module |  |
| Target versions | 5.0.8 |
| Observed in versions |  |
| Sprint |  |
| Backlog bucket |  |
| Bug found in version (deprecated) |  |
| Found in mobile app version |  |
| Follow-up feedback e-mail |  |
| Requires doc change | No |
| Accessibility | No |
| Pull preview |  |
| List |  |
| Labels |  |

## People

| Attribute | Value |
| --- | --- |
| Assignee |  |
| Accountable |  |
| Product manager |  |
| Developers |  |
| Designer |  |
| Ordered by |  |
| Signed off by |  |
| Interest by |  |

## Planning

| Attribute | Value |
| --- | --- |
| Relevance |  |

## Costs

| Attribute | Value |
| --- | --- |
| Votes |  |
| Work |  |
| Labor costs |  |

## Description

Hi everyone,

In latest OpenProject version (5.0.7), whenever I’m editing pages in Wiki section, **Preview** button doesn’t work anymore.

Here’s the relevant trace in Firefox debug console :  
application-dcd9f5d7a02fef7e22f7d28eb8d66018.js:62863 POST http://XXXX/projects/XXX/wiki/Wiki/preview 404 (Not Found)  
I created a hosted server (Free Trial) and I could reproduce this bug as well.

By the way, it seems there are some CSS rendering issues, especially when using <code> tag in

<pre>

section.  
Thanks in advance for your support.

Best regards,  
Guillaume.