"Files" and other tabs not visible for document library after script editor webpart is added

Question

I created a document library and uploaded a few documents to ti.  On the ribbon, I could see both "Files" and "Library" tabs.  I then added a Script Editor webpart to this page because I needed to run some javascript on this
page.  Now, when I go to that document library page (AllItems.aspx) then I don't see the Files and Library tab.  My guess is that this is because these tabs are context sensitive so they only appear when Sharepoint knows you're working with a document
library and since now I have both the webpart that shows the document library and the Script editor webpart, that context is not there.  If I click somewhere on the page close to the actual list of documents, then the Files and Library tabs reappear since
now Sharepoint knows that I'm working with a document library.  Is there any way aroudn this?  We don't want to have to ask our customer to click somewhere on the screen in order to get access to these tabs.  I'm not sure why Sharepoint would
be confused by the Script editor webpart.  It is not visible so when the page is not in edit more, you can't even see that Script editor.  So, my question is: is there any way to:
- either find some other way of using javascript on this page (maybe external javascript file with some link to it on the page?
- or, some way to force the Fiels and Library tabs to be visible no matter what (i.e. despite having the Script editor webpart on the page).
I also experienced this issue when I wanted to insert some customized text on the same page that had a document library.  For example, I created a document library and then on the AllItems.aspx page I inserted a content editor webpart so that I can
show some text at the top.  That also caused the Files and Library tabs to disappear.
thanks,

Answer 1

Hi,
I understand Files/Libraray tab disappear after you add web parts to a document library, once you click somewhere in library list, it will appear again.
This is by design. As workaround, please try to use SharePoint Desginer to edit Allitems page of document library instead of using script web part.
https://social.msdn.microsoft.com/Forums/office/en-US/fd1bb098-6425-437c-b3f8-25bf65bcaad3/ribbon-control-disappears-on-sharepoint2013-document-libraries-when-content-editor-web-part-has?forum=sharepointdevelopment
Regards,
Rebecca Tu
TechNet Community Support
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