heading with aria-level > 6

I suggest that https://w3c.github.io/aria/#heading explicitly mentions that aria-level, unlike HTML headings, can be greater than 6.

I want to work on this issue, please assign me.

Thank you.

@jnurthen

Hello @jnurthen ,

I am new and a quite beginner in the world of Open Source, so please help me through and please tell me what exactly I have to do.

Thanking you

I don't have too much skin in the game here, but I question whether allowing aria-level to exceed "6" is a good idea or not.

My understanding with a lot of the aria attributes is/was to develop parity with host languages (here HTML), and in HTML, the heading levels go from 1 to 6. Experience suggests however that under most circumstances, headings beyond level 'h5' are exceedingly rare, and I question any real value in allowing aria-level to fork from the default values previously determined in HTML, and supported by AT for more than 2 decades. (Do we have any assurance or indication that assistive technology would support a level 7, 8, 9, or 10?)

If anything, rather than making an edit to role=heading, I'd seek to add clarification to aria-level and implement a max value (of 6).

My $0.02 from an old punter.

@johnfoliot

Hello, @johnfoliot ,

You are absolutely correct, because as a Web Developer, I am understand the concept of this heading and all, so I don't think so, that we have to add more heading levels.

So please tell me now what next I have to do, as I really want to contribute in W3C.

Thanking You.

@JAWS-test

@JAWS-test do you have a test page which shows the level of support for heading levels > 6?

@jnurthen

@jnurthen https://codepen.io/jaws-test/pen/bGBOgQX

Test results

JAWS + Edge, IE 11, Chrome, Firefox: 1-6 as level 1-6, all other as level 2, fractional numbers are rounded down
NVDA + Edge, Chrome: 1-9 as level 1-9, all other as level 2, fractional numbers are rounded down
NVDA + IE 11: 1-1000000 as level 1-1000000, without level and 0 as heading without any level, fractional numbers are rounded down
NVDA + Firefox: 1-1000000 as level 1-1000000, without level and 0 as level 2, fractional numbers are rounded down
MS Narrator + Edge, Chrome: 1-9 as level 1-9, all other as level 2, fractional numbers are rounded down
MS Narrator + Firefox: 1-9 as level 1-9, without level and 0 as level 2, 10 and larger: no output as heading, fractional numbers are rounded down
TalkBack + Chrome: 1-6 as level 1-6, 7-9 not as heading but as column header, all other as level 2, fractional numbers are rounded down
VoiceOver + Safari (iPhone): 1-1000000 as level 1-1000000, without level and 0 as level 2, fractional numbers are rounded down

Firefox submits level 2 to the Accessibility API for missing values and values less than 1, and the respective number for all numbers greater than 1 (rounded down for fractional numbers).

Chrome and Edge correctly submit to the Accessibility API the value in aria-level and also determine two custom values for a heading level (see figure 1):

1st value: for 1-9 the values 1-9, for all others the value 2.
2nd value: for 1-9 the values 1-9, for all others the value 0 (probably to show that there is actually no correct value).

Figure 1: Accessiblity Tab of Chrome (F12)

More test results with other browsers and screen readers are welcome!

fix(aria-level): update to specify only level 1-6 (#1873)

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heading with aria-level > 6 #1050

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heading with aria-level > 6 #1050

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sahilempire commented on Mar 2, 2021

sahilempire commented on Mar 4, 2021

johnfoliot commented on Mar 4, 2021

sahilempire commented on Mar 10, 2021

jnurthen commented on Mar 10, 2021

JAWS-test commented on Mar 11, 2021

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