TYPO3 Core

I can confirm this bug in TYPO3 6.1 (tested with the ACL set up on a usergroup)
The error says:

Oops, an error occurred!

Access Error: You don't have access to this module.

But I have a question: if a user/usergroup should use only a custom workspace, why he/it should not have access to the Workspace module?

I guess it has been solved on version 12.4.14, 13.1.0 (latest main)
I repeated the test I've described on my comment n°7, I'll repeat it here with some additional details:

Prerequisites¶

1) TYPO3 12.4.14 or 13.1.0-dev (latest main)
2) an "Admin" administrator User
3) An initial Home page "Home" (ID=1)

You can use a very minimal TypoScript Setup config, like:

config.no_cache=1
page = PAGE
page {
  5 = TEXT
  5 {
      data = field : title
      wrap = <h1>|</h1>
    }
}

page.100 =< styles.content.get

4) A "TestGroup" BE Usergroup with

Access Rights Tab > Modules [groupMods] >

• Web > Page [web_layout] > allow
• Web > List [web_list] > allow
• Everything else > denied (including Web > Workspaces [workspaces_admin] )

Mounts and Workspaces Tab > Workspace permissions [workspace_perms] = 0
Mounts and Workspaces Tab > DB Mounts [db_mountpoints] : Home

5) An Editor (non-admin) BE user "TestUser" with

Mounts and Workspaces Tab > Workspace permissions [workspace_perms] = 1

6) A "Draft" Workspace with
Tab General: >

Owners [adminusers]: Admin
Members [members]: TestGroup

Tab Mountpoints >
DB Mounts [db_mountpoints] : Home

With this configuration on the backend the editor can see the workspace switcher in the top status bar

7) A subpage "Test Page"

On System > Access give the following Owner | Group | Permission:

Page	Owner	Group	Everybody
Home	admin (full control)	admin (full control)	only Show page (1)
Test Page	TestUser (full control)	TestGroup (full control)	deny all

8) with "Admin" user, switch to "Draft" workspace
9) Edit the "Test Page" page and change something e.g. the title to "Test Page changed on WS", save and exit

Now on the pagetree the page is marked as different from the "live" version (marked with yellow background/dot)

Test 1¶

1. Log in with "TestUser"
2. switch to "Draft" Workspace
3. Page Module > Go to page "Test Page"
4. Click on the "View Webpage" button

Results¶

The "split window" preview opens on a new tab, already on the "Preview of Workspace Draft"
if you use the "slider" you should see the title changing

You can obtain the same result using the "View Webpage" button on each line of the "List" view.

Test 2¶

1. Log in with "Admin" user
2. Change the BE user "TestUser" settings:
   Mounts and Workspaces Tab > Workspace permissions [workspace_perms] = 0, save and exit
   With this configuration the BE editor already starts with the "Draft workspace"
3. Log in with "TestUser" user
4. Page Module > Go to page "Test Page"
5. Click on the "View Webpage" button

Results¶

The "split window" preview opens on a new tab, already on the "Preview of Workspace Draft"
if you use the "slider" you should see the title changing

You can obtain the same result using the "View Webpage" button on each line of the "List" view.

Note:

I repeated the same tests on TYPO3 11.5.35 and I found an odd bug: the "preview slider" window always shows the "Live" version

• the Pagetree in "Draft" workspace shows the correct changed title
• the bug does not occur with the "admin" user

Conclusion¶

Is the test sufficient? Do you think that a different test is necessary?