होम बर्नी सिटी काउंसिल

홈 버니 시의회

ホーム バーニー市議会

Home Burnie Majlis Bandaraya

Inicio Ayuntamiento de Burnie

Home Burnie City Council

首頁 伯尼市議會

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Avoid opening links in a new tab or window. Where you must do this, include an explanation
in the text of the link.

## Why this matters

Opening links in a new tab or window breaks the back button and can be disorientating for 
novice web users, and the visually impaired. Generally you should avoid opening links in a
new tab or window, but if you have to, you should include text explaining that this will happen.

## How to fix

An explanation must be clear in the accessible text for the link. For example:

```html
<a href="products.html" target="_blank">
    Products (opens in new window)
</a>
```

Or, for an image inside a link:

```html
<a href="products.html" target="_blank">
    <img src="products.jpg" alt="Products (opens in new window)">
</a>
```

Rather than updating all of your links manually to do this, you can add a simple CSS
selector, such as:

```css
a[target="_blank"]:after {
    content: " (opens in new window)";
}
```

Note that doing this with an icon, is not sufficient to pass this check. The text must be
readable by screen readers.

Alternatively you can override the link text for accessible technologies (like screenreaders),
so that the appearance of the link does not change. For example:

```html
<a href="products.html" target="_blank" aria-label="Products (opens in new window)">
    Products
</a>
```

Note that if you do this, the `aria-label` will replace the text content of the link completely,
so it must still make sense in isolation.

## Terminology

Although it is common to say "opens in new window", almost all browsers now use tabs, and
so this terminology is potentially confusing. You may prefer: "opens in new tab".

## Methodology

1. Silktide considers all links on a page with a `target` attribute of `_blank`.
2. For each link, Silktide considers the screen-readable text of the link, which includes:
   * The text content of the link
   * Any `alt` text inside any images inside the link
   * Any `aria-label` or `aria-labelled-by` text
   * The `content` of the pseudo-elements `:before` and `:after`
3. This text is analysed for the presence of common text, including "opens new tab"
    and "opens new window". If the text is not found, the link fails the test.

## Further reading

Generally best practice is to avoid opening links in a new tab or window.  

The W3C provides detailed guidance on 
[when opening a link in a new window may be appropriate](https://www.w3.org/TR/WCAG20-TECHS/G200.html).

link-text-explains-open-in-new-window

June 2024

May 2024

Burnie City Council

Title / URL	Issues
होम बर्नी सिटी काउंसिलwww.burnie.tas.gov.au/Home?lang_update=638454174842873734	29
홈 버니 시의회www.burnie.tas.gov.au/Home?lang_update=638454174952703054	29
ホームバーニー市議会www.burnie.tas.gov.au/Home?lang_update=638454174869436393	29
Home Burnie Majlis Bandarayawww.burnie.tas.gov.au/Home?lang_update=638454174937547641	28
Inicio Ayuntamiento de Burniewww.burnie.tas.gov.au/Home?lang_update=638454174835842433	28
Home Burnie City Councilwww.burnie.tas.gov.au/Home?lang_update=638454175023594629	28
首頁伯尼市議會www.burnie.tas.gov.au/Home?lang_update=638454175156589139	28
Home Burnie City Councilwww.burnie.tas.gov.au/Home	28
First time visit: View without clicking anythingwww.burnie.tas.gov.au/Home	28
首页伯尼市议会www.burnie.tas.gov.au/Home?lang_update=638454175138121661	28

Ensure links explain they open in a new tab

Burnie City Council

Where this issue has occurred