[Bug]: The postMessage to trigger a find no longer appears to work

[wkvolkman]

Attach (recommended) or Link to PDF file

Using 4.10.38 downloaded yesterday.

usc01.indexed.pdf

Calling the embedded viewer and trying to have it initiate a find no longer seems to work, the example code I had waited on the 'webviewerloaded" event however no longer receive that. The only event that happens is the 'forward-log' event, so 15 seconds after it arrives I issue the "find". Pointers to fine manuals to read appreciated.
Code snippet:

    <div id="viewer-container">
        <iframe id="pdf-viewer" src="/static/pdfjs/web/viewer.html" allowfullscreen></iframe>
    </div>

    <script>
        function loadDocument(url, page) {
            const viewer = document.getElementById('pdf-viewer');
            viewer.src = `/static/pdfjs/web/viewer.html?file=${encodeURIComponent(url)}#page=${page}`;

            const urlParams = new URLSearchParams(window.location.search);
	    const query = urlParams.get('q');

            window.addEventListener('message', function(event) {
                console.log('Received viewer event:', event.data);
                if (event.data.type === 'forward-log' && query) {
                    setTimeout(() => {
                        let viewerWindow = viewer.contentWindow;
                        viewerWindow.postMessage({
                            type: "find",
                            query: query,
                            highlightAll: true,
                            caseSensitive: false,
			}, "*");
                    }, 15000);
		}
            });
	}
    </script>

Web browser and its version

Chrome Version 131.0.6778.205 (Official Build) (x86_64) on a Mac

Operating system and its version

MacOS 14.6.1 (23G93)

PDF.js version

4.10.38

Is the bug present in the latest PDF.js version?

Yes

Is a browser extension

No

Steps to reproduce the problem

The above code snippet with pdfjs in the path specified in an html file should show the problem.

What is the expected behavior?

I get a webviewerloaded event and that the text of the query are highlighted. If there is another way to have arbitrary text highlighted

What went wrong?

Viewer does not highlight the query text

Link to a viewer

https://61d6cc1c-7c99-402a-8ac7-978d69c8542e-00-294k8j7y3a8oa.riker.replit.dev/static/pdfjs/web/viewer.html

Additional context

I was looking for documentation on the events that can be posted to the viewer, if you have any pointers please.

[wkvolkman]

Also this postMessage and probably the "navigate" and "zoom" no longer work:

        viewer.postMessage({
            type: "pageNumber",
            pageNumber: pageNum
        }, "*");