No result from chrome.tabs.query in Opera

Question

I have developed a Chrome extension, it works fine in Chrome 39 but gives an error in Opera developer 24 on Ubuntu 14.04 (64 bit).

Error in response to tabs.query: TypeError: Cannot read property 'id' of undefined at HTMLLIElement.click

So I tested chrome.tabs.query on both browser consoles:

chrome.tabs.query(
  { active: true, highlighted: true, currentWindow: true }, 
  function(thisTab) {
    console.log(thisTab);
  }
);

In Chrome it returns a complete Tab object.

But in Opera it returns a blank array [].

Why this is happening?

Answer 1

It seems that Opera does not include the concept of a highlighted tab, which is already pretty obscure in Chrome.

Your query is excessive anyway: in Chrome, the active tab cannot be non-highlighted.

So, for a query that works in both, use {active: true, currentWindow: true}.