[Web] Texture2D.get_image() returns null when running on WebGL

[Henrique-Henrique]

Godot version

4.0.beta

System information

Windows 10/11, Web

Issue description

get_image() from a Texture2D returns null when running in Web.

The problem was solved in previous versions but returned in version 4

Steps to reproduce

Just get an image from texture from a node in the scene. And play in the browser.

Examples:
$Icon.get_texture().get_image()
get_viewport().get_texture().get_image()

Minimal reproduction project

No response

[akien-mga]

Confirmed, I had worked around this issue in #65704 for one case which was raising an error in the web editor.

Now the web editor as of 4.0 beta 4 is crashing in this code:

void EditorRunNative::_notification(int p_what) {
	switch (p_what) {
		case NOTIFICATION_ENTER_TREE: {
			for (int i = 0; i < EditorExport::get_singleton()->get_export_platform_count(); i++) {
				Ref<EditorExportPlatform> eep = EditorExport::get_singleton()->get_export_platform(i);
				if (eep.is_null()) {
					continue;
				}
				Ref<ImageTexture> icon = eep->get_run_icon();
				if (!icon.is_null()) {
					Ref<Image> im = icon->get_image();
					im = im->duplicate();
					im->clear_mipmaps();
					if (!im->is_empty()) {
						im->resize(16 * EDSCALE, 16 * EDSCALE);
						Ref<ImageTexture> small_icon = ImageTexture::create_from_image(im);
						MenuButton *mb = memnew(MenuButton);
						mb->get_popup()->connect("id_pressed", callable_mp(this, &EditorRunNative::run_native).bind(i));
						mb->connect("pressed", callable_mp(this, &EditorRunNative::run_native).bind(-1, i));
						mb->set_icon(small_icon);
						add_child(mb);
						menus[i] = mb;
					}
				}
			}
		} break;

Because there's no null check before im->duplicate().