var /*TextFrame*/tF = app.selection[0]; 

app.paste() 

var /*String*/ contentClipBoard = tF.contents 

tF.texts[0].remove(); 

var Gruppenname = app.selection[0].name; 
var url = prompt("Pfad eingeben",Gruppenname); 
app.selection[0].name = url; 
 
var _auswahl = app.selection[0]; 
var url = url.replace(/%20/g, " "); 
if (_auswahl != undefined) { 
	_auswahl.place(url); 
	_auswahl.fit(FitOptions.FILL_PROPORTIONALLY); 
	_auswahl.fit(FitOptions.CENTER_CONTENT); 
} else { 
    var myDoc = app.activeDocument; 
    var myFrame = myDoc.textFrames.add();  
    myFrame.place(url); 
    myFrame.fit (FitOptions.FRAME_TO_CONTENT); 
} 

set clipboardContent to the clipboard 

  main(); 
   
 /*Void*/function main(){ 
    try{ 
        var /*Document*/doc = undefined, 
            /*Rectangle*/r = undefined, 
            /*TextFrame*/tF = undefined, 
            /*File*/f = undefined; 
 
        if (app.documents.length > 0){ 
            doc = app.documents[0]; 
            if (app.selection.length > 0){ 
                if ((app.selection[0].constructor.name === "Rectangle") || (app.selection[0].constructor.name === "TextFrame")){ 
                    r = app.selection[0]; 
                    tF = doc.textFrames.add();  
                    tF.texts[0].insertionPoints[-1].select(); 
                    app.paste(); 
                    file = File(tF.texts[0].parent.contents); 
                    tF.remove(); 
                    if (file.exists ){ 
                        r.place(file);  
                    } 
                } 
            } 
        } 
    } 
    catch (error){ 
        alert("Fehler: " + error.message + "\n" + "in Zeile: " + error.line + "\n"); 
 
    } 
 } 

alert(GetClipboard());   
function GetClipboard(){   
    var clipboard;   
    if(File.fs == "Macintosh"){   
        var script = 'tell application "Finder"\nset clip to the clipboard\nend tell\nreturn clip';   
        clipboard = app.doScript (script,ScriptLanguage.APPLESCRIPT_LANGUAGE);   
    } else {   
        var script = 'Set objHTML = CreateObject("htmlfile")\r'+   
        'returnValue = objHTML.ParentWindow.ClipboardData.GetData("text")';   
        clipboard = app.doScript(script,ScriptLanguage.VISUAL_BASIC);   
    }   
    return clipboard;   
} 

function get_clipboard(){ 
    //![Script args from do script.] 
    if(File.fs == "Windows") { 
      // Siehe oben 
    } else { 
        //Create a string to be run as a AppleScript. 
        p1 = "tell application \"Adobe InDesign 2021\"\r"; 
        p2 = "tell script args" +"\r"; 
        p3 = "set value name \"clipboard\" value "; 
        p4 = "(the clipboard as text)\r"; 
        p7 = "end tell" + "\r" 
        p8 = "end tell" + "\r" 
        var myAppleScript = p1 + p2 + p3 + p4 + p7 + p8; 
        app.doScript(myAppleScript, ScriptLanguage.applescriptLanguage); 
    } 
    var myScriptArgumentA = app.scriptArgs.getValue("clipboard"); 
    return myScriptArgumentA; 
} 
 alert( get_clipboard() );