Null popup window

There are cases when popups are blocked in IE or Microsoft Edge, for example when a second popup occurs during multi-factor authentication. You will get an alert in the browser to allow for the pop-up window once or always. If you choose to allow, the browser opens the pop-up window automatically and returns a null handle for it. As a result, the library does not have a handle for the window and there is no way to close the pop-up window.

The same issue does not happen in Chrome when it prompts you to allow pop-up windows because it does not automatically open a pop-up window. As a workaround , developers will need to allow popups in IE and Microsoft Edge before they start using their app to avoid this issue. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Creating a more clear issue than this one, closing. DarkLite1 closed this May 26, Sign up for free to subscribe to this conversation on GitHub.

Already have an account? Sign in. Linked pull requests. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Possible cause Looking at this further in this issue pkanher said: When you make a request, please check the scopes parameter of the response.

No empty popup that quickly disappears when clicking the TEST button on the home page. The window creation and the loading of the referenced resource are done asynchronously. If a window with the name already exists, then url is loaded into the existing window.

In this case the return value of the method is the existing window and windowFeatures is ignored. Providing an empty string for url is a way to get a reference to an open window by its name without changing the window's location. Otherwise the call to window. To open a new window on every call of window. After a window is opened, JavaScript can't be used to change the features.

If windowName does not specify an existing window and the windowFeatures parameter is not provided or if the windowFeatures parameter is an empty string , then the new secondary window will render the default toolbars of the main window. You can specify the windowFeatures parameter to explicitly request that the browser use a popup window with minimal UI parts for the new secondary window.

Whether or not to use a popup window affects the BarProp. Note: In some browsers, users can configure the browser to not to use a popup window. Also, some browsers, such as mobile browsers, don't have the concept of windows. If this feature is present and enabled, it requests that the browser use a minimal pop-up window for the new secondary window.

If this feature is present and disabled, it requests that the browser not use a minimal pop-up window for the secondary window. To enable the feature, specify popup either with no value at all, or else set it to yes or 1.

If any feature names are given, and the popup feature name is not given, it requests that the browser use a minimal pop-up window for the secondary window. Note: In some browsers, users can override this behavior.

Also, it has no effect in mobile browsers, which lack the concept of windows. Note on position and dimension error correction. Warning: If only one of them is specified, the behavior is implementation-dependent, and web author should not rely on it. Specifies the distance the new window is placed from the left side of the work area for applications of the user's operating system to the leftmost border resizing handle of the browser window. The new window cannot be initially positioned offscreen.

Specifies the distance the new window is placed from the top side of the work area for applications of the user's operating system to the topmost border resizing handle of the browser window. If the windowFeatures parameter is non-empty and if no position features are defined, then the left and top coordinates of the new window dimension will be 22 pixels from where the most recently rendered window was.

An offset is universally implemented by browser manufacturers it is 29 pixels in IE6 SP2 with the default theme and its purpose is to help users to notice new windows opening. If the most recently used window was maximized, then there is no offset: the new window will be maximized as well. Specifies the width of the content area, viewing area of the new secondary window in pixels.

The width value includes the width of the vertical scrollbar if present. The width value does not include the sidebar if it is expanded.

The minimum required value is Specifies the height of the content area, viewing area of the new secondary window in pixels. The height value includes the height of the horizontal scrollbar if present. The height value does not include other UI parts such as location bar, title bar, tab bar, etc.

If the windowFeatures parameter is non-empty and no size features are defined, then the new window dimensions will be the same as the dimensions of the most recently rendered window. Warning: These features are kept only for backward compatibility. In modern browsers Firefox 76 or newer, Google Chrome, Safari, Chromium Edge , the following features are just a condition for whether to open a popup or not.

See the popup condition section. The following features control the visibility of each UI part. To enable them, either specify them with no value at all, or else set them to yes or 1.

To disable them, either omit them, or else set them to no or 0. I have a problem. There are two functions I assigned to two buttons, each would pop up up if click.

At all times, there will be only one pop up at a time or so I desire. This is what I have done so far:. When Add New Tester window is opened first , if user tries to click on Delete Tester button it would alert the user. When Delete Tester window is opened, if user tries to click on Add New Tester button it would alert the user.

I have indicated at the code where the error occurs, in the first function. Any help on this? Found the answer.