iFrame Validation errors

[mayeenulislam]

I'm using Facebook Like Box by JetPack, and with W3C Validator I'm getting the following two errors regarding iframe:

The result can be seen here: http://validator.w3.org/check?uri=http%3A%2F%2Fnishachor.com%2F&charset=%28detect+automatically%29&doctype=Inline&ss=1&outline=1&group=1&No200=1&verbose=1&st=1&user-agent=W3C_Validator%2F1.3+http%3A%2F%2Fvalidator.w3.org%2Fservices

[mayeenulislam]

And W3C Mobile Validator is saying:

And it's a critical issue of a site.

[kraftbj]

For the mobile issue, the iframe is the only way to deliver the information from Facebook. The mobile validator, I assume, is referring to the old practice of using HTML frames or an iframe to display primary content surrounded by "fixed" elements.

For the obsolete HTML, we'll take a look.

[jeherve]

We might be able to use the HTML5 embed code instead of the iFrame, but I'll have to check if that method still provides the same options.

[jeherve]

Similar issue with the Jetpack Comment form.

Reported here: https://wordpress.org/support/topic/please-fix-w3-validation-errors?replies=1&view=all

[aheckler]

Mentioned in 2143459-t

[jeherve]

Also reported here: https://wordpress.org/support/topic/w3c-errors-5?replies=1&view=all

[jeherve]

The Facebook Like Box was deprecated by Facebook, and we now use the Facebook Page Plugin instead: https://developers.facebook.com/docs/plugins/page-plugin

Sine the new Page Plugin doesn't use an iFrame, this issue only concerns the Comment form now.

[jeherve]

Also reported here: https://wordpress.org/support/topic/reddit-share-button-generates-w3c-errors/

[seejacobscott]

Also reported in 755768-zen referencing the Contact Info and Map widget:

The frameborder attribute on the iframe element is obsolete. Use CSS instead.

Tested on https://validator.w3.org/

[stale[bot]]

This issue has been marked as stale. This happened because:

• It has been inactive in the past 6 months.
• It hasn’t been labeled `[Pri] Blocker`, `[Pri] High`.

No further action is needed. But it's worth checking if this ticket has clear reproduction steps and it is still reproducible. Feel free to close this issue if you think it's not valid anymore — if you do, please add a brief explanation.

[github-actions[bot]]

This issue has been marked as stale. This happened because:

• It has been inactive in the past 6 months.
• It hasn’t been labeled `[Pri] Blocker`, `[Pri] High`, etc.

No further action is needed. But it's worth checking if this ticket has clear reproduction steps and it is still reproducible. Feel free to close this issue if you think it's not valid anymore — if you do, please add a brief explanation.