sendMessage from extension background or popup to content script doesn’t work

by

In your background page you should call

chrome.tabs.query({active: true, currentWindow: true}, function(tabs){
    chrome.tabs.sendMessage(tabs[0].id, {action: "open_dialog_box"}, function(response) {});  
});

instead of using chrome.extension.sendMessage as you currently do.

The chrome.tabs variant sends messages to content scripts, whereas the chrome.extension function sends messages to all other extension components.

More Related Contents:

  1. Use a content script to access the page context variables and functions
  2. Chrome extension content script re-injection after upgrade or install
  3. Chrome extension code vs Content scripts vs Injected scripts
  4. Chrome extension is not loading on browser navigation at YouTube
  5. Chrome extension: accessing localStorage in content script
  6. My CSS is not getting injected through my content script
  7. Fixed attachment background image flicker/disappear in chrome when coupled with a css transform
  8. Chrome extension adding external javascript to current page’s html
  9. Optionally inject Content Script
  10. Content script matching top-level domains like all google.*
  11. Access window variable from Content Script [duplicate]
  12. How to inject CSS using content script file in Chrome extension?
  13. Access variables and functions defined in page context using a content script
  14. How to get a content script to load AFTER a page’s Javascript has executed?
  15. Chrome content scripts aren’t working: DOMContentLoaded listener does not execute
  16. Chrome extension: Communication between content script and background.html
  17. How to to initialize keyboard event with given char/keycode in a Chrome extension?
  18. CSS3 background image transition
  19. How can I run a PHP script in the background after a form is submitted?
  20. How to handle background audio playing while iOS device is locked or on another application?
  21. Changing background color of selected item in recyclerview
  22. Injecting JS functions into the page from a Greasemonkey script on Chrome
  23. TableCellRenderer and how to refresh Cell background without using JTable.repaint()
  24. How to retrieve the element where a contextmenu has been executed
  25. How to download a CRX file from the Chrome web store for a given ID? [closed]
  26. Cross-Origin XMLHttpRequest in chrome extensions
  27. On page load event in Chrome extensions
  28. How to call getResources() from a class which has no context?
  29. Chrome Console SameSite Cookie Attribute Warning
  30. How to set Ripple effect on a LinearLayout programmatically?

Leave a Comment