LibWeb: Handle EOF tokens during "text" insertion

Libraries/LibWeb/DOM/HTMLScriptElement.h

@@ -44,6 +44,7 @@ public:
 
     void set_parser_document(Badge<HTMLDocumentParser>, Document&);
     void set_non_blocking(Badge<HTMLDocumentParser>, bool);
+    void set_already_started(Badge<HTMLDocumentParser>, bool b) { m_already_started = b; }
     void prepare_script(Badge<HTMLDocumentParser>);
     void execute_script();
 

Libraries/LibWeb/Parser/HTMLDocumentParser.cpp

@@ -1431,6 +1431,15 @@ void HTMLDocumentParser::handle_text(HTMLToken& token)
         insert_character(token.codepoint());
         return;
     }
+    if (token.is_end_of_file()) {
+        PARSE_ERROR();
+        if (current_node().tag_name() == "script")
+            to<HTMLScriptElement>(current_node()).set_already_started({}, true);
+        m_stack_of_open_elements.pop();
+        m_insertion_mode = m_original_insertion_mode;
+        process_using_the_rules_for(m_insertion_mode, token);
+        return;
+    }
     if (token.is_end_tag() && token.tag_name() == "script") {
         NonnullRefPtr<HTMLScriptElement> script = to<HTMLScriptElement>(current_node());
         m_stack_of_open_elements.pop();