Use the creation date in the popup when there is no modification date

Remove the h1 element in popup title because it caused a warning in Firefox and use a span instead.

src/core/annotation.js

@@ -3842,6 +3842,7 @@ class PopupAnnotation extends Annotation {
       return;
     }
     this.data.parentRect = lookupNormalRect(parentItem.getArray("Rect"), null);
+    this.data.creationDate = parentItem.get("CreationDate") || "";
 
     const rt = parentItem.get("RT");
     if (isName(rt, AnnotationReplyType.GROUP)) {

src/display/annotation_layer.js

@@ -2071,7 +2071,7 @@ class PopupAnnotationElement extends AnnotationElement {
       container: this.container,
       color: this.data.color,
       titleObj: this.data.titleObj,
-      modificationDate: this.data.modificationDate,
+      modificationDate: this.data.modificationDate || this.data.creationDate,
       contentsObj: this.data.contentsObj,
       richText: this.data.richText,
       rect: this.data.rect,
@@ -2212,14 +2212,17 @@ class PopupElement {
 
     const header = document.createElement("span");
     header.className = "header";
-    const title = document.createElement("h1");
-    header.append(title);
-    ({ dir: title.dir, str: title.textContent } = this.#titleObj);
+    if (this.#titleObj?.str) {
+      const title = document.createElement("span");
+      title.className = "title";
+      header.append(title);
+      ({ dir: title.dir, str: title.textContent } = this.#titleObj);
+    }
     popup.append(header);
 
     if (this.#dateObj) {
       const modificationDate = document.createElement("time");
-      modificationDate.classList.add("popupDate");
+      modificationDate.className = "popupDate";
       modificationDate.setAttribute(
         "data-l10n-id",
         "pdfjs-annotation-date-time-string"

test/pdfs/.gitignore

@@ -730,3 +730,4 @@
 !empty#hash.pdf
 !bug1885505.pdf
 !bug1974436.pdf
+!firefox_logo.pdf

test/test_manifest.json

@@ -12156,5 +12156,13 @@
     "rounds": 1,
     "type": "eq",
     "annotations": true
+  },
+  {
+    "id": "firefox_logo",
+    "file": "pdfs/firefox_logo.pdf",
+    "md5": "e212e0cec3e39907950c597782a42c3a",
+    "rounds": 1,
+    "type": "eq",
+    "annotations": true
   }
 ]

web/annotation_layer_builder.css

@@ -342,8 +342,9 @@
     display: inline-block;
   }
 
-  .popup > .header h1 {
+  .popup > .header > .title {
     display: inline;
+    font-weight: bold;
   }
 
   .popup > .header .popupDate {