Rule 8.9.1
Summary
This test consists in searching patterns indicating that forbidden tags (not div, span or table) are used for layout purpose.
Business description
Criterion
Test
Description
Dans chaque page Web les balises (à l'exception de div, span et table) ne doivent pas être utilisées uniquement à des fins de présentation. Cette règle est-elle respectée ?
Level
A
Technical description
Scope
page
Decision level
semidecidable
Algorithm
Selection
Set1
All the <a> tags without "href", "name" or "id" attribute
(a:not([href]):not([name]):not([id]))
Set2
All the fieldset not within a form (fieldset:not(form fieldset):not([role=search] fieldset):not([role=form] fieldset))
Process
Test1
We check whether Set1 AND Set2 are empty. If true, raise a MessageA
MessageA : No suspect pattern detected
- code :NoPatternDetected
- status: Pre-Qualified
- present in source : no
For each occurence of the Set1 raise a MessageB
MessageB : Link without target
- code :LinkWithoutTarget
- status: Failed
- parameter : snippet
- present in source : yes
For each occurence of the Set2 raise a MessageC
MessageC : Fieldset not within a form
- code :FieldsetNotWithinForm
- status: Failed
- parameter : snippet
- present in source : yes
Test1 :
Analysis
Failed :
The page contains a link without target or a fieldset not within a form (Test1 returns false)
Pre-qualified :
Test1 returns true
Notes
On latest webdev data set (2013-10-30, 78,000 pages), links without target (a:not([href]):not([name]):not([id])) have been found on 18256 pages, i.e on 23% of the pages.
On latest webdev data set (2013-10-30, 78,000 pages), fieldsets not within form (fieldset:not(form fieldset):not([role=search] fieldset):not([role=form] fieldset)) have been found on 982 pages, i.e on 1.25% of the pages.