IssueTracker

Component used: Activity

Version used: android 33

What went wrong?
This error net::ERR_UPLOAD_FILE_CHANGED appears.

I didn't use the photopicker explicitly
We know that some models automatically expose photoPicker when using ACTION_GET_CONTENT
It does not always fail, but it does fail intermittently.
 it always succeeds when the photoPicker is a regular document selector that does not appear.

I suspect that the metadata in the file will be modified as soon as I approach the URI as shown in the ticket below.
https://issuetracker.google.com/issues/243294058


   override fun onShowFileChooser(
        webView: WebView?,
        filePathCallback: ValueCallback<Array<Uri>>?,
        fileChooserParams: FileChooserParams?,
    ): Boolean {
        WebViewActivity.filePathCallback = filePathCallback
        val intent = fileChooserParams?.createIntent()
        val mimetypesList = fileChooserParams?.acceptTypes
        intent?.putExtra(Intent.EXTRA_MIME_TYPES, mimetypesList)
        intent?.let {
           startActivityForResult(Intent.createChooser(it, ""), REQ_SELECT_IMAGE)
        }
        return true
    }


HTML File sample source is very simple. It has one 'form' and generates 'blob' by URI obtained through FileChooser.

  <form action="upload" method="post" id="fileForm" enctype="multipart/form-data">
        <input type="file" name="file" id="fileInput" accept="video/*">
        <input type="submit">
    </form>

<script>
    var intput = document.getElementById('fileInput');
    intput.addEventListener('change', function (e) {
        const file = this.files[0]
        var video = document.createElement('video');
        video.width = 240;
        video.height = 240;
        video.addEventListener('error', function (e) {
            console.log(e.target.error);
            alert(e);
        });
        video.onloadedmetadata = function (e) {
            console.log("loadedmetadata")
            video.play();
        }
        video.src = URL.createObjectURL(file);
        document.body.appendChild(video);
    });
</script>