How to open a URL in a new Tab using JavaScript or jQuery?

Detailed Implementation Insights

Safeguarding Against Browser's Pop-up Policies

Browsers employ pop-up blockers to protect from unwelcome, intrusive behaviour. When leveraging window.open(), consider:

1. var newTab = window.open(); - Open a new tab.
2. if (!newTab) - Verify if a new tab opened or is null.
3. alert('Please allow pop-ups for this website'); - Inform the user of blocked pop-ups.

Undertaking these checks enhances your application's UX, ensuring your tab-opening script is foolproof.

Focusing and User Interactions

A user launching a new tab would ideally want to shift focus to the new content:

var newTab = window.open('https://www.example.com', '_blank');
newTab.focus();  // 'Look at me!' screams the new tab.
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The newly opened tab is highlighted with .focus(), although, some browsers might give precedence to user's manual control.

Assign Click Events in jQuery

Within a jQuery context, avoid the automatic redirection of anchor tags and configure a custom click event:

$('a.new-tab').click(function(event) {
  event.preventDefault();  // 'Hold your horses, I got this!' says your script to the anchor tag.
  window.open(this.href, '_blank').focus();  // 'New window... open sesame!'
});
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With .preventDefault(), you effectively stop an anchor tag's default behaviour, window.open() paired with '_blank' replaces this with a new tab opening.

Compatibility and Workarounds

Browser Behaviours and window.open()

Browser responses can vary:

• Some forge a new window instead of a tab.
• Others impose size or feature restrictions.

For cross-browser compatibility, rigorous testing is your friend.

Fallback Strategies

In situations where JavaScript is disabled or blocked consistently, an HTML form submission can be a saviour:

<form action="https://www.example.com" target="_blank" method="get">
  <input type="submit" value="Visit Site in New Tab">  // Talk about sneaky ways :-)
</form>
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A simple form transforms into a JavaScript-disguised trojan horse, offering a server-side alternative.

Responsible Tab Handling

While new tab openings are a powerful tool, they can be disruptive if overused, leading to negative user experiences. Employ this functionality wisely and always remember - user’s comfort is the North Star.