Is it possible to control the cache behavior in Puppeteer-Sharp?

Yes, it is possible to control the cache behavior in Puppeteer-Sharp, which is the .NET port of the Node library Puppeteer (a headless Chrome or Chromium browser automation library).

In Puppeteer-Sharp, you can control the browser cache in several ways, such as by setting the cache enabled/disabled, intercepting network requests to modify the cache headers, or using a custom profile where the cache is managed according to your preferences.

Here are a few examples of how you can control the cache behavior in Puppeteer-Sharp:

Disable the Cache

To disable the cache entirely, you can use the SetCacheEnabledAsync method on the Page object:

using PuppeteerSharp;

// Launch the browser
await using var browser = await Puppeteer.LaunchAsync(new LaunchOptions
{
    Headless = true
});

// Create a new page
var page = await browser.NewPageAsync();

// Disable cache for this page
await page.SetCacheEnabledAsync(false);

// Navigate to the website
await page.GoToAsync("https://example.com");

Clearing the Cache

To clear the browser cache, you can use the BrowserContext object's ClearCacheAsync method:

using PuppeteerSharp;

// Launch the browser with a new context
var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });
var context = await browser.CreateIncognitoBrowserContextAsync();

// Create a new page within the context
var page = await context.NewPageAsync();

// Navigate to the website
await page.GoToAsync("https://example.com");

// Clear the cache
await context.ClearCacheAsync();

// Close the context
await context.CloseAsync();

Intercept Requests and Modify Cache Headers

You can also intercept network requests and modify the response headers to control caching behavior:

using PuppeteerSharp;

// Launch the browser
await using var browser = await Puppeteer.LaunchAsync(new LaunchOptions
{
    Headless = true
});

// Create a new page
var page = await browser.NewPageAsync();

// Subscribe to the request event
page.Request += async (sender, e) =>
{
    if (e.Request.ResourceType == ResourceType.Document)
    {
        // Intercept the request and continue without caching
        await e.Request.ContinueAsync(new Payload
        {
            Headers = new Dictionary<string, string>
            {
                ["Cache-Control"] = "no-cache"
            }
        });
    }
    else
    {
        // For other resources, just continue normally
        await e.Request.ContinueAsync();
    }
};

// Enable request interception
await page.SetRequestInterceptionAsync(true);

// Navigate to the website
await page.GoToAsync("https://example.com");

Remember to always properly manage resources by closing pages, browser contexts, and browsers when you're done with them.

Please note that Puppeteer-Sharp's API might differ slightly from the Node version of Puppeteer, so always consult the Puppeteer-Sharp documentation for the most accurate and up-to-date information.