InvalidArgumentException: The URL //node/1 is not managed by Akamai

Problem/Motivation

Entering a valid relative path starting with leading / in Akamai Cache Control form is throwing below exception:

InvalidArgumentException: The URL //node/1 is not managed by Akamai. Try setting your Akamai base url. in Drupal\akamai\AkamaiClientBase->purgeUrls() (line 252 of modules/contrib/akamai/src/AkamaiClientBase.php).

On debugging, I found that the submitForm function in CacheControlForm.php is appending a / at the start of each path($urls_to_clear[] = trim('/' . $path);) before calling $this->akamaiClient->purgeUrls($urls_to_clear). Hence every relative input path with a leading /, Ends up having two leading // and the same gets passed to purgeUrls() which in turn is throwing exception.

Steps to reproduce

• Login as an admin on the site.
• Configure the akamai module at /admin/config/akamai/config and make sure you enter a valid Base Path.
• Go to the path /admin/config/akamai/cache-clear
• In the "Paths/URLs/CPCodes" form element, Enter a valid node's relative path(Example: /node/1).
• In the "Purge Method" form element, Ensure "Url" radio is selected.
• Click on "Start Refreshing Content" submit button.
• You should get the HTTP 500 error.

Proposed resolution

• In the validateForm() function, Set error if any of the relative path is starting with a leading /

Remaining tasks

User interface changes

None

API changes

None

Data model changes

None