Do not try to save to text or download the page using js, this is a lost cause (for security reasons).
One workaround: put the content of the page within the GET parameters of a form:
document.getElementById('name_of_my_element').innerHTML = '<form action="#" method="get"><input type="hidden" name="param1" value="'+ encodeURIComponent(getResultsHTML()) +'">' +'<input type="submit" value="Submit"></form>';
I made a js function getResultsHTML() that calculates results, but it can be any text, even a document.getElementById('name_of_my_element').innerHTML of you whole page
In my python code it's simple:
from PySide2.QtWebEngineWidgets import QWebEngineView
from PySide2 import QtCore
def run():
# ...
self.myview = QWebEngineView()
path_html_file = os.path.abspath(path_html_file)
url_tlx = QtCore.QUrl.fromLocalFile(path_html_file)
self.myview .load(url_tlx)
self.myview .show()
self.myview.urlChanged.connect(self.callback_url_changed) # this will trigger when url is changed
def callback_url_changed(self):
print(myview.url().toString())
# > file:///index.html?param1=text%20forwared%20in%20get#
# continue with with re and urllib.parse to extract and decode from the string
until a solution comes out...
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