Add shareable URL links (?url= param), JS-site detection, fix examples

app.py

@@ -1,6 +1,7 @@
 """HuggingFace Space for AI text detection using adaptive-classifier."""
 
 import re
+import urllib.parse
 import urllib.request
 from html.parser import HTMLParser
 
@@ -365,22 +366,38 @@ def detect_text(text: str) -> dict:
     return {label: round(score, 4) for label, score in predictions}
 
 
-def detect_url(url: str) -> tuple[dict, str]:
+SPACE_URL = "https://adaptive-classifier-ai-detector.hf.space"
+
+
+def detect_url(url: str) -> tuple[dict, str, str]:
     """Fetch a URL and classify its text content."""
     if not url or not url.strip():
-        return _error_label("Please enter a URL"), ""
+        return _error_label("Please enter a URL"), "", ""
     try:
         text = fetch_url(url)
     except Exception as e:
-        return _error_label(f"Could not fetch URL: {e}"), ""
-    if len(text.split()) < 10:
-        return _error_label("Not enough readable text found at that URL"), text[:500]
+        return _error_label(f"Could not fetch URL: {e}"), "", ""
+    # Detect JS-only pages that return no usable content
+    js_hints = ["javascript is not available", "enable javascript", "javascript is disabled",
+                "please enable js", "requires javascript", "noscript"]
+    text_lower = text.lower()
+    if any(h in text_lower for h in js_hints) or len(text.split()) < 10:
+        if any(h in text_lower for h in js_hints):
+            return _error_label("This site requires JavaScript to load content (e.g. Twitter/X, SPAs). Try a different URL or paste the text directly."), "", ""
+        return _error_label("Not enough readable text found at that URL"), text[:500], ""
     words = text.split()
     if len(words) > 2000:
         text = " ".join(words[:2000])
     result = detect_text(text)
     preview = text[:1500] + ("..." if len(text) > 1500 else "")
-    return result, preview
+    share_link = f"{SPACE_URL}/?url={urllib.parse.quote(url.strip(), safe='')}"
+    return result, preview, share_link
+
+
+def handle_url_param(request: gr.Request):
+    """Auto-fill URL from ?url= query parameter."""
+    url = request.query_params.get("url", "")
+    return url if url else ""
 
 
 with gr.Blocks(css=CSS, title="AI Text Detector", theme=gr.themes.Base()) as demo:
@@ -432,6 +449,12 @@ with gr.Blocks(css=CSS, title="AI Text Detector", theme=gr.themes.Base()) as dem
 
             with gr.Group(elem_classes="result-card"):
                 url_output = gr.Label(num_top_classes=2, label="Result")
+                share_link = gr.Textbox(
+                    label="Share this result",
+                    interactive=False,
+                    visible=False,
+                    elem_classes="preview-box",
+                )
 
             with gr.Group(elem_classes="input-card"):
                 url_preview = gr.Textbox(
@@ -441,7 +464,16 @@ with gr.Blocks(css=CSS, title="AI Text Detector", theme=gr.themes.Base()) as dem
                     elem_classes="preview-box",
                 )
 
-            url_btn.click(fn=detect_url, inputs=url_input, outputs=[url_output, url_preview], api_name="detect_url")
+            def run_url_detection(url):
+                result, preview, link = detect_url(url)
+                return result, gr.update(value=link, visible=bool(link)), preview
+
+            url_btn.click(
+                fn=run_url_detection,
+                inputs=url_input,
+                outputs=[url_output, share_link, url_preview],
+                api_name="detect_url",
+            )
 
             gr.HTML('<div class="examples-heading">Try an example</div>')
             gr.Examples(
@@ -453,6 +485,9 @@ with gr.Blocks(css=CSS, title="AI Text Detector", theme=gr.themes.Base()) as dem
                 label="",
             )
 
+    # Auto-fill URL from ?url= query parameter on page load
+    demo.load(fn=handle_url_param, inputs=None, outputs=url_input)
+
     gr.HTML("""
     <div class="info-strip">
         <p>