XMLHttpRequest response to open new page?
lazarus / 38-Networking and Web Programming

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epergola · 2020-05-10 19:36

I can't get past this.
I have a synapse http server. The client side sends a request, the app
(server) creates an html which is saved to the outputdata stream that
is sent back to the client.
This updates the <body> on the client side.
As long as I am on the same client html page everything works fine.
But for one client request I need to open a  a new page. And here I
get stuck.
Previously I add this script to the client <body>
Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i   var xhr =
new XMLHttpRequest;  xhr.onreadystatechange=function(){    if
(xhr.readyState === 4 && xhr.status ===200) {   (normally,
document.body.insertAdjacentHTML("beforeend", xhr.responseText);');  
    what should I do here for this different purpose?    }  } 
xhr.open("POST","http://192.168.1.64",true); 
xhr.setRequestHeader("Content-Type", "text/xml");   
xhr.send(); Normally I have this in the request processing on the
server side
Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i  
 l:=loadheadings(t);   l.SaveToStream(OutputData);    ..... set all
appropriate headers and send them  Sock.SendBuffer(OutputData.Memory,
OutputData.Size); The page gets updated according to the L (which is
html markup).
But i I want to load a new page loaded with this L, and open it, what
should I do? Perhaps save L to a disk file in the server side?
What should go in the xhr.onreadystatechange=function() and
what should I return after loadheadings() on the server side?

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fjabouley · 2020-05-10 20:41

.

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fjabouley · 2020-05-10 20:56

Argh editing posts is horrible....
Can you send xml from server to change innerhtml code in your client
page?

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epergola · 2020-05-10 23:05

Thanks. Yes, but in this particular case I want to leave the current
page as is, and open a new page with the html created in the response

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kupferstecher · 2020-05-10 23:21

You could call a new address in the code.
https://stackoverflow.com/questions/2018567/loading-another-html-page-
from-javascript

(I'm not proficient in that field, there are probably better
solutions.)

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fjabouley · 2020-05-11 05:09

Maybe this?


Code: Text  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i  var xhr =
new XMLHttpRequest;    xhr.onreadystatechange=function(){    if
(xhr.readyState === 4 && xhr.status ===200) {var new_window =
window.open(null,
'','_blank');new_window.document.write(xhr.responseText);    }  } 
xhr.open("POST","http://192.168.1.64",true); 
xhr.setRequestHeader("Content-Type", "text/xml");  xhr.send();   
Remove "_blank" to open in other tab, instead of opening in a new
window.
Regards

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epergola · 2020-05-12 17:54

Thanks fjabouley.
That works, but the script inside the new windows (like onclick()
function) do no execute.