HTML Validation warnings, boston.gov

[david-iterators]

Screengrab/videos (insert file names here)
2020 11 23, HTML Validation, boston.gov.pdf

Link
https://boston.gov

Node # (if known)
21

Type of User: Anonymous

Environment
(Device > OS > Browser)
Computer > macOS > Chrome 86

Trusted Tester Test
Parsing

Brief Description
HTML Validation warnings, boston.gov

Steps to reproduce

1. Go to https://validator.w3.org/
2. Enter in a URL for testing, such as https://boston.gov
3. Obtain the attached report

Desired Result
No HTML validation errors. Note that this is a lower priority accessibility issue because html5 has updated guidance for resolving validation errors. Note that this could be tested on all pages of the website.

Actual Result
HMTL validation errors and warnings are obtained.

2020 11 23, HTML Validation, boston.gov.pdf

[subaha-cob]

Here is a reference with a little more background about high priority parsing errors.
Parsing Errors, Deprecating SC 4.1.1 · Issue #770 · w3c, wcag.pdf

[subaha-cob]

Dupplicate - Parsing Errors #199