fix: load captcha image in Chrome on initial page load

public/typo3conf/ext/ep_theme/Resources/Private/Partials/Form/Captcha.html

@@ -12,7 +12,11 @@
                               errorClass="form-field--has-error"
                               placeholder="Bitte die Zeichen aus der Grafik eingeben"
                               additionalAttributes="{formvh:translateElementProperty(element: element, property: 'fluidAdditionalAttributes')}"/>
-			<img src="{f:uri.page(pageType:3413)}" alt="Captcha image" loading="lazy" onload="this.parentElement.classList.remove('captcha--reloading'); return false;"/>
+			<f:comment>
+				The "now" param keeps bw_captcha 3.x from sending a Content-Length that is the base64 size of the
+				binary image (too large), which makes Chrome drop the response. Fixed upstream in bw_captcha 4.0.1.
+			</f:comment>
+			<img src="{f:uri.page(pageType:3413)}&amp;now=0" alt="Captcha image" loading="lazy" onload="this.parentElement.classList.remove('captcha--reloading'); return false;"/>
 			<f:if condition="{element.properties.showRefresh}">
 				<button type="button" 
 					class="captcha__reload"