I've logged in as the admin of my site, gone to a course, added a "page" activity and pasted in the surveymonkey code into its content using the moodle editor. This is a div, with a script src->surveymonkey.com in it. It dynamically draws what it needs - in theory.
The script is stripped.
I've tried these things with no joy
- making my page edit text instead of html, in case the editor was tripping up on it
- following through with https://moodle.org/mod/forum/discuss.php?d=227561 to see if I could embed the code and wrap the usual cdata block on it
- adding my admin user as a member of "manager", since manager role has site/trustedcontent permission enabled (and I checked it).
Content gets rendered to the page like this:
<script src="about:blank">// <![CDATA[
</div>Create your free online surveys with <a href="https://www.surveymonkey.com/">SurveyMonkey</a> , the world's leading questionnaire tool.</div>
So the src parameter of the script tag is taken out altogether, even though I'm a site administrator and a manager.