Clear local storage ?

[thefunkyjoint]

Is there a command on CEF4Delphi to clear just the local storage (not cookies) of the current url ?

I mean that part on Devtools :

https://ibb.co/QYTmQR6

[salvadordf]

Yes. You can call TChromiumCore.ClearDataForOrigin with these parameters :

• aOrigin : Security origin. An asterisk * means all origins.
• aStorageTypes :
  • cdstAppCache : app cache
  • cdstCookies : cookies
  • cdstFileSystems : file systems
  • cdstIndexeddb : indexed db
  • cdstLocalStorage : local storage
  • cdstShaderCache : shader cache
  • cdstWebsql : websql
  • cdstServiceWorkers : service workers
  • cdstCacheStorage : cache storage
  • cdstAll : all of the above.

That function calls the Storage.clearDataForOrigin DevTools method :
https://chromedevtools.github.io/devtools-protocol/tot/Storage/#method-clearDataForOrigin

This is an asynchronous function and you have to wait for the TChromiumCore.OnDevToolsMethodResult event to know the result.

[thefunkyjoint]

Thank you

[thefunkyjoint]

I've made some tests and looks like i need to call the function like this :

ClearDataForOrigin('cdstLocalStorage',cdstLocalStorage);

Passing two parameters otherwise it will delete everything, including cookies. Is this correct ?

[salvadordf]

Use a URL as origin in the first parameter like this :

Code: Select all

TChromiumCore.ClearDataForOrigin('https://www.google.com', cdstLocalStorage);

If you navigate to https://www.google.com you will see an entry in the local storage. The previous code deletes that entry and leaves the cookies unchanged.

[thefunkyjoint]

Now i understood, the first parameter is the url. Thanks !