1062304 - Inspecting a node's attributes in the webconsole leads to [Use of attributes ownerElement/nodeValue/textContent attribute is deprecated] errors

Status: RESOLVED DUPLICATE of bug 860312

(DevTools :: Console, defect, P3)

Description

[Patrick Brosset <:pbro>]

STR:

- Open the devtools webconsole on this page
- type 'document.body.attributes',
- click on the word 'NamedNodeMap' in the output so that the object is inspected in the variablesview on the side,
- now expand the first attribute in the variables view.

This generates 3 errors in the console:

Use of attributes' ownerElement attribute is deprecated. script.js:3202
Use of attributes' nodeValue attribute is deprecated. Use value instead. script.js:3202
Use of attributes' textContent attribute is deprecated. Use value instead. script.js:3202

These error messages will be confusing to users of the devtools because they are from the debugger actors code, not theirs.
We should either stop using these deprecated attributes or not output these errors in the web console.

Comment 1

[Panos Astithas (he/him) [:past] (please ni?)]

These are not caused by the actor using deprecated attributes, but by the engine when the actor tries to call these getters in order to get the value to display in the variables view. Unfortunately there is no way currently to separate these warnings from legitimate content warnings, as the engine does not distinguish them in any way.

Comment 2

[Panos Astithas (he/him) [:past] (please ni?)]

Hmm, a hacky way to deal with these might be to examine the location for a chrome-style URL and clear the window ID in that case, so that the message would appear in the browser console instead.