diff --git a/Common/Net/HTTPClient.cpp b/Common/Net/HTTPClient.cpp
index 786975bb33..142f41426d 100644
--- a/Common/Net/HTTPClient.cpp
+++ b/Common/Net/HTTPClient.cpp
@@ -509,7 +509,7 @@ int Download::PerformGET(const std::string &url) {
 		return -1;
 	}
 
-	RequestParams req(fileUrl.Resource(), "*/*");
+	RequestParams req(fileUrl.Resource(), acceptMime_);
 	return client.GET(req, &buffer_, responseHeaders_, &progress_);
 }
 
@@ -571,8 +571,10 @@ void Download::Do() {
 	completed_ = true;
 }
 
-std::shared_ptr<Download> Downloader::StartDownload(const std::string &url, const Path &outfile) {
+std::shared_ptr<Download> Downloader::StartDownload(const std::string &url, const Path &outfile, const char *acceptMime) {
 	std::shared_ptr<Download> dl(new Download(url, outfile));
+	if (acceptMime)
+		dl->SetAccept(acceptMime);
 	downloads_.push_back(dl);
 	dl->Start();
 	return dl;
@@ -581,8 +583,11 @@ std::shared_ptr<Download> Downloader::StartDownload(const std::string &url, cons
 std::shared_ptr<Download> Downloader::StartDownloadWithCallback(
 	const std::string &url,
 	const Path &outfile,
-	std::function<void(Download &)> callback) {
+	std::function<void(Download &)> callback,
+	const char *acceptMime) {
 	std::shared_ptr<Download> dl(new Download(url, outfile));
+	if (acceptMime)
+		dl->SetAccept(acceptMime);
 	dl->SetCallback(callback);
 	downloads_.push_back(dl);
 	dl->Start();
diff --git a/Common/Net/HTTPClient.h b/Common/Net/HTTPClient.h
index 8146353b2f..e96102ce05 100644
--- a/Common/Net/HTTPClient.h
+++ b/Common/Net/HTTPClient.h
@@ -120,6 +120,10 @@ public:
 	std::string url() const { return url_; }
 	const Path &outfile() const { return outfile_; }
 
+	void SetAccept(const char *mime) {
+		acceptMime_ = mime;
+	}
+
 	// If not downloading to a file, access this to get the result.
 	Buffer &buffer() { return buffer_; }
 	const Buffer &buffer() const { return buffer_; }
@@ -160,6 +164,7 @@ private:
 	std::string url_;
 	Path outfile_;
 	std::thread thread_;
+	const char *acceptMime_ = "*/*";
 	int resultCode_ = 0;
 	bool completed_ = false;
 	bool failed_ = false;
@@ -177,12 +182,13 @@ public:
 		CancelAll();
 	}
 
-	std::shared_ptr<Download> StartDownload(const std::string &url, const Path &outfile);
+	std::shared_ptr<Download> StartDownload(const std::string &url, const Path &outfile, const char *acceptMime = nullptr);
 
 	std::shared_ptr<Download> StartDownloadWithCallback(
 		const std::string &url,
 		const Path &outfile,
-		std::function<void(Download &)> callback);
+		std::function<void(Download &)> callback,
+		const char *acceptMime = nullptr);
 
 	// Drops finished downloads from the list.
 	void Update();
diff --git a/Core/Config.cpp b/Core/Config.cpp
index fa8d232dc6..bb956d8c86 100644
--- a/Core/Config.cpp
+++ b/Core/Config.cpp
@@ -1393,8 +1393,9 @@ void Config::Load(const char *iniFileName, const char *controllerIniFilename) {
 	// splash screen quickly), but then we'll just show the notification next time instead, we store the
 	// upgrade number in the ini.
 	if (iRunCount % 10 == 0 && bCheckForNewVersion) {
-		std::shared_ptr<http::Download> dl = g_DownloadManager.StartDownloadWithCallback(
-			"http://www.ppsspp.org/version.json", Path(), &DownloadCompletedCallback);
+		const char *versionUrl = "http://www.ppsspp.org/version.json";
+		const char *acceptMime = "application/json, text/*; q=0.9, */*; q=0.8";
+		auto dl = g_DownloadManager.StartDownloadWithCallback(versionUrl, Path(), &DownloadCompletedCallback, acceptMime);
 		dl->SetHidden(true);
 	}
 
diff --git a/Core/Util/GameManager.cpp b/Core/Util/GameManager.cpp
index 26b0581c95..bb658b2219 100644
--- a/Core/Util/GameManager.cpp
+++ b/Core/Util/GameManager.cpp
@@ -100,7 +100,8 @@ bool GameManager::DownloadAndInstall(std::string storeFileUrl) {
 	}
 
 	Path filename = GetTempFilename();
-	curDownload_ = g_DownloadManager.StartDownload(storeFileUrl, filename);
+	const char *acceptMime = "application/zip, application/x-cso, application/x-iso9660-image, application/octet-stream; q=0.9, */*; q=0.8";
+	curDownload_ = g_DownloadManager.StartDownload(storeFileUrl, filename, acceptMime);
 	return true;
 }
 
diff --git a/UI/DevScreens.cpp b/UI/DevScreens.cpp
index fdd15ccb42..389fdf0967 100644
--- a/UI/DevScreens.cpp
+++ b/UI/DevScreens.cpp
@@ -1206,7 +1206,8 @@ void FrameDumpTestScreen::update() {
 	UIScreen::update();
 
 	if (!listing_) {
-		listing_ = g_DownloadManager.StartDownload(framedumpsBaseUrl, Path());
+		const char *acceptMime = "text/html, */*; q=0.8";
+		listing_ = g_DownloadManager.StartDownload(framedumpsBaseUrl, Path(), acceptMime);
 	}
 
 	if (listing_ && listing_->Done() && files_.empty()) {
diff --git a/UI/Store.cpp b/UI/Store.cpp
index 4f029d9738..ab40825e93 100644
--- a/UI/Store.cpp
+++ b/UI/Store.cpp
@@ -134,7 +134,9 @@ void HttpImageFileView::DownloadCompletedCallback(http::Download &download) {
 void HttpImageFileView::Draw(UIContext &dc) {
 	using namespace Draw;
 	if (!texture_ && !textureFailed_ && !path_.empty() && !download_) {
-		download_ = downloader_->StartDownloadWithCallback(path_, Path(), std::bind(&HttpImageFileView::DownloadCompletedCallback, this, std::placeholders::_1));
+		auto cb = std::bind(&HttpImageFileView::DownloadCompletedCallback, this, std::placeholders::_1);
+		const char *acceptMime = "image/png, image/jpeg, image/*; q=0.9, */*; q=0.8";
+		download_ = downloader_->StartDownloadWithCallback(path_, Path(), cb, acceptMime);
 		download_->SetHidden(true);
 	}
 
@@ -366,8 +368,8 @@ StoreScreen::StoreScreen() {
 	loading_ = true;
 
 	std::string indexPath = storeBaseUrl + "index.json";
-
-	listing_ = g_DownloadManager.StartDownload(indexPath, Path());
+	const char *acceptMime = "application/json, */*; q=0.8";
+	listing_ = g_DownloadManager.StartDownload(indexPath, Path(), acceptMime);
 }
 
 StoreScreen::~StoreScreen() {