Submit iframe form outside iframe using button

Question

I have a contact.html file, which contains an iframe: , which only contains the three input boxes in contact_inputs.php. I want to put the iframe file into the iframe file via a button outside the iframe

P粉546179835 · Answer

Here you can try this logic:

function sub(ev) {
        ev.preventDefault();
        let frame1 = document.getElementById("frame1");

        let parser = new DOMParser();
        let doc = parser.parseFromString(frame1.innerHTML, "text/html");

        let iframeForm = doc.body.querySelector("form");

        console.log(iframeForm);

        //通过name属性访问表单输入字段的值
        console.log(iframeForm.cn.value);
      }



  
    
    
    
    Document
  
  
    
      <form id="iframe1Form">
        <input type="" name="cn" value ="HELLO"/>
        <input type="" name="ex" />
        <input type="" name="cr" />
      </form>

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