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noBlankTarget (since v1.0.0)

Diagnostic Category: lint/a11y/noBlankTarget

Sources:

Disallow target="_blank" attribute without rel="noreferrer"

When creating anchor a element, there are times when its link has to be opened in a new browser tab via target="_blank" attribute. This attribute has to paired with rel="noreferrer" or you’re incur in a security issue.

Refer to the noreferrer documentation and the the noopener documentation

Examples

Section titled Examples

Invalid

Section titled Invalid
<a href='http://external.link' target='_blank'>child</a>
a11y/noBlankTarget.js:1:32 lint/a11y/noBlankTarget  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ Avoid using target="_blank" without rel="noreferrer".
  
  > 1 │ <a href='http://external.link' target='_blank'>child</a>
      │                                ^^^^^^^^^^^^^^^
    2 │ 
  
  ℹ Opening external links in new tabs without rel="noreferrer" is a security risk. See the explanation for more details.
  
  ℹ Safe fix: Add the rel="noreferrer" attribute.
  
    1 │ <a·href='http://external.link'·target='_blank'·rel="noreferrer">child</a>
      │                                               +++++++++++++++++          

<a href='http://external.link' target='_blank' rel="noopener">child</a>
a11y/noBlankTarget.js:1:32 lint/a11y/noBlankTarget  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ Avoid using target="_blank" without rel="noreferrer".
  
  > 1 │ <a href='http://external.link' target='_blank' rel="noopener">child</a>
      │                                ^^^^^^^^^^^^^^^
    2 │ 
  
  ℹ Opening external links in new tabs without rel="noreferrer" is a security risk. See the explanation for more details.
  
  ℹ Safe fix: Add the "noreferrer" to the existing attribute.
  
    1 │ <a·href='http://external.link'·target='_blank'·rel="noreferrer·noopener">child</a>
      │                                                     +++++++++++                   

<a {...props} href='http://external.link' target='_blank' rel="noopener">child</a>
a11y/noBlankTarget.js:1:43 lint/a11y/noBlankTarget  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ Avoid using target="_blank" without rel="noreferrer".
  
  > 1 │ <a {...props} href='http://external.link' target='_blank' rel="noopener">child</a>
      │                                           ^^^^^^^^^^^^^^^
    2 │ 
  
  ℹ Opening external links in new tabs without rel="noreferrer" is a security risk. See the explanation for more details.
  
  ℹ Safe fix: Add the "noreferrer" to the existing attribute.
  
    1 │ <a·{...props}·href='http://external.link'·target='_blank'·rel="noreferrer·noopener">child</a>
      │                                                                +++++++++++

Valid

Section titled Valid
<a href='http://external.link' rel='noreferrer' target='_blank'>child</a>
<a href='http://external.link' target='_blank' rel="noopener" {...props}>child</a>
Section titled Related links