[Bug] Duplicate in Firefox

[helfi92]

We are using this library to display a terminal. It works properly on Chrome but noticed that anything on the page gets duplicated in Firefox:

Terminal on Chrome

Terminal on FF

I believe the culprit lies in hterm.ScrollPort.prototype.decorate:

hterm.ScrollPort.prototype.decorate = function(div) {
  // ...

  if ('mozInnerScreenX' in window)  // detect a FF only property
    this.iframe_.src = '#';

 // ...

Having the iframe src be # will duplicate whatever is on the page, including all the headers defined on the page consuming this library.

[helfi92]

@dbkaplun Any idea of what would be a good fix for this issue?

[pablodgonzalez]

i am over the same issue. The problem is about the iframe.src property in FF.
is it is '' => FF says current location and if it is '#' => firefox say currentlocation#
In the case of hterm the src is loaded after the contentDocument so hterm creates the terminal and FF delete it and write the current location.
I have tried putting all about contentDocument in the iframe's load event, but It hasn't work until now.
please, if someone find a good fix it will be great

[denlap007]

Is there any workaround available?