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Images sometimes appearing as broken, sometimes not

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Has anyone run into the situation where images in a page sometimes appear as broken (i.e.:257270_Screen Shot 2017-10-19 at 1.01.04 PM.png) and other times not?  Explanation?

The image was first uploaded to "Course Files" and embedded in a page using the image tool.

The HTML looks like this:

<p><img src="" alt="This is an Alt tag" width="500" height="375" data-api-endpoint="" data-api-returntype="File" />

While we're at it, if someone cares to explain some stuff in the code above,  it would satisfy a long standing curiosity.:

1) what is the function of <... data-api-endpoint="https://.../api/v1/courses/1578621/files/64634637" data-api-returntype="File"/>

2) In the first part of the image tag, if /preview is deleted, it gets replaced by /download.  The functionality doesn't seem to change.


11 Replies
Explorer III

A final (?) update..

Students have now been loaded into my courses and, after speaking with the Canvas Help Desk at my local institution, it appears that 'enrolled students' are able to view embedded images. Yay! So, perhaps the disappearing images from 'enrolled student' view (mentioned above) is separate from the one that engineers have been working on. If anything changes (as students begin accessing pages and assignments), I will follow-up. If you are experiencing something different, please keep us posted.

Many thanks to everyone who participated in helping bring the urgent 'diappearing images' problem to the attention of Canvas engineers (submitting problem reports and shaing case numbers with the community)! 

Hi  @kimberly_smith1 ,

I'm glad to hear that your students are reporting being able to see images in your course - thats the most important thing. 

This is also a great example of why its important for people to file support tickets when they see something not working in Canvas.  In this case, several unrelated problems surfacing at the same time that each give similar results but coming from several causes.  Its also great that people were able to coordinate across institutions here in the community, but people should also still file tickets.