Window.open() behavior with Http://& Https:// on ios

Question

I have a form which has many fields including two icons which redirect user on a new tab.

1st Link

<span class="uk-input-group-addon">
  <a onclick="window.open('https://www.myURL.com/folder1/page_name', '_blank')" style="margin-bottom: -20px;"><i class="material-icons light-green-text text-darken-1">&#xE8B6;</i></a>
</span>

2nd Icon:

<span>
  <a onclick="window.open('http://secondURL.com/subPath/subPath/Pages/default.aspx', '_blank')" style="margin-bottom: -20px;"><i class="material-icons light-green-text text-darken-1"style="overflow:hidden">&#xE880;</i></a>
</span>

The first link works just fine and open page in a new window in any device & any platform.

the second link works fine and open page in a new window on windows platform only and some apple devices.

The difference between both links is the first link is https & the second link is Http only.

1. Is it the real problem ?

2. How many cases are there in which window.open will not open link in the new page ?

3. Is it possible that it opens up a new tab but the link won't show on the new tab like a blank new tab ?

Answer 1

I would comment as it is not a proper answer, but I don't have enough rep; you should probably suspect the compatibility between iOS/the browser used and ASP.NET.