I published an app on my dev server to be installed in sharepoint 2013, but I can not view the default.aspx page, invalid certificate prompts

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This caused by site authentication usually when you configure your add-in web site per my experience, You may try the steps in my demo guideline here.

Thread for your reference.

  • Already followed your guide but unfortunately same error :( – Joshua Dominic Sibug Aug 28 '18 at 10:00

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