Fixed bug where duplicate threads would not get responded

app/utils_worker/download/browser.py

@@ -136,12 +136,11 @@ class PDFDownloader:
             hrefs = [e.get_attribute("href") for e in self.driver.find_elements_by_xpath("//a[@href]")]
         except:
             hrefs = []
-        old = hrefs
+        len_old = len(hrefs)
         hrefs = [h for h in hrefs \
             if not sum([(domain in h) for domain in blacklisted]) # sum([True, False, False, False]) == 1 (esp. not 0)
             ] # filter a tiny bit at least
-        diff = set(old) ^ set(hrefs)
-        self.logger.info(f"Removed {len(diff)} hrefs: {diff} (before:{len(old)}, after: {len(hrefs)})")
+        self.logger.info(f"Hrefs result (before:{len_old}, after: {len(hrefs)})")
         return hrefs