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Course Import and data-api-endpoint issues?

Question asked by Daniel William Slusser on Nov 22, 2019
Latest reply on Feb 4, 2020 by Kate Twoey

Hello,

 

I noticed some different behavior recently in canvas when an image or link to a file is imported from a course. I'm not sure when it started, but I know that it must be in the past few months because this was not the behavior that I have seen in the past.

 

Upon course import of content into the recipient course, the recipient course no longer rewrites the data-api-endpoint attribute of images or files, but the actual source of the file or image does get rewritten.

 

I haven't done enough testing to see if this is an issue or not, but I would imagine that if canvas looks at this data-api-endpoint attribute instead of the actual source, it could return images/files that aren't associated with the recipient course.

 

For example, the newly noticed behavior looks like the following code upon import (notice the data-api-endpoints do not match the source)

 

Example 1:

<div class="ds_ga"><iframe src="/courses/4130/files/3244108/download" width="100%" height="0" data-api-endpoint="https://abc123.instructure.com/api/v1/courses/4118/files/2984567" data-api-returntype="File"></iframe></div>

 

OR

 

Example 2:

<img style="margin: 15px auto; display: block; width: 100%; max-width: 100%; min-width: 100%;" src="/courses/4130/files/2974818/preview" alt="Poster" width="800" height="400" data-api-endpoint="https://abc123.instructure.com/api/v1/courses/2865/files/2589234" data-api-returntype="File" />

 

 

I would assume that the code should look like the following examples (notice the data-api-endpoints match the source)

 

Example 1:

<div class="ds_ga"><iframe src="/courses/4130/files/3244108/download" width="100%" height="0" data-api-endpoint="https://abc123.instructure.com/api/v1/courses/4130/files/3244108" data-api-returntype="File"></iframe></div>

 

OR

 

Example 2:

<img style="margin: 15px auto; display: block; width: 100%; max-width: 100%; min-width: 100%;" src="/courses/4130/files/2974818/preview" alt="Poster" width="800" height="400" data-api-endpoint="https://abc123.instructure.com/api/v1/courses/4130/files/2974818" data-api-returntype="File" />

 

 

Has anyone else noticed this behavior? Should I be concerned that my files and images aren't being correctly served to my students? Should I be concerned about any kind of external tool using the data-api-endpoint? Something tells me this has cascading implications.

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