1175 course import dont ask to leave page all the time

[DawinYurtseven]

What was the problem:

The problem was that each time something happened during a Course Import, the browser would ask the user if they wanted to leave the page, which would lead to a refreshed site and no changes saved.

What caused it:

there where two reasons why this happened.

• The body of the import was a
  without a submit type function. this makes the browser think that the user didn't save any change while the site would update itself.
• The addEventListener in the course-import.ts file wasn't removed after step 2, a successful import/ an error.

My Fixes:

• turned the body in course-import.gohtml into a
• added the function OnBeforeUnloadHandler which is just the event itself. but I added removeEventListener in the "notify2" event so that when the second step has been done, the user has no more inputs to do, so asking them would be meaningless

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Logins

| Kurs1 | Kurs2 | Kurs3 | Kurs4 | | ---------------------------------------- | ------------------------- | ------------------------- | ------------------------- | | public | public | loggedin | enrolled | | prof1 | prof1 | prof2 | prof1
prof2 | | student1
student2
student3 | student1
student2 | student2
student3 | student1
student2 |

[SebiWrn]

Maybe you can add back the two comments to preventDefault() and returnValue that have been there before so we know why these two commands are there