Can't 'Insert image' in TinyMCE in Media Source for site editors

WAMP install on Windows 10. PHP v5.512.

Have set up a Media Source of type Filesystem for site content editors to upload images etc.
Have set basePath to assets/upload/
And same for baseUrl.

When logged in as a content editor, TinyMCE's Insert image produces this error when I click on the browse icon:
'An error occurred... Access Denied'.

I can manually add the image with html ie <img src="assets/upload/this-image.jpg">

When logged in as Administrator, I notice that 'Insert image' goes to root directory. As Administrator, I have permissions on that, but the content editor doesn't. So I suspect TinyMCE is not starting its browse in 'assets/upload'.

Any idea how I fix that?

Thanks

Which MODX Extra are you using?

Quote from: donshakespeare at May 23, 2016, 09:27 AM

Which MODX Extra are you using?

I've installed:

Wayfinder
SimpleSearch
TinyMCE
DefaultResourceGroup

So you are using the first one here? TinyMCE 4.3.3-pl
https://modx.com/extras/browse/?search=tinymce

I don't think anyone supports that anymore.

Time to move on.

OK, have just installed CKeditor and get the same problem.

I've just noticed your TinymceWrapper. I'll try with that.

elFinder Awesome Browser returns this message:

Error Invalid backend response
Data is not JSON

Please read some. Or google TinymceWrapper keywords.
This is were I concentrate support
https://forums.modx.com/thread/97694/support-comments-for-tinymcewrapper

You can change the browser to MODX native browser in the Plugin's Properties to try and isolate your original Media Source problem.

OK, thanks for your help.

Problem solved. Newbie error caused by not properly understanding Access Control for Media Sources.

Perfect - now you can move on like a boss!