I'm facing this problem regularly and still cannot find a solution; also not in https://moodle.org/mod/forum/discuss.php?d=345828.
We are running 2 Moodle 3.9 websites; both HTTPS.
The LTI provider published a whole course. This website used a normal moodle theme (boost) (so no probem with favicons)
All settings are done as decribed in moodle docs:
- Enable LTI authentication plugin
- Enable Publish as LTI tool
- Allow frame embedding = On
In the LTI consumer:
- Add external tool
- use cartridge URL and secret key
- use some text as consumer key
- launch container default or embed
When I click on the external tool as a student, the login page of the LTI provider is shown.
When I change the launch container to new window, I can directly access the content as expected.
I tried the Saltire tool platform with my own LTI provider and the launch container embed. When I click on connect, this message is sent out:
GET /tc-profile.php/sdd40c1026ba45a96721f49d3eb16ad24 HTTP/1.1
HTTP/1.1 400 Bad Request
Date: Fri, 23 Apr 2021 08:24:18 +0000
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Although it seems to work when opening in new window, we would like to use the content embedded.
Is there anyone who could help?