Fix host breaking when set to only port

src/utils.ts

@@ -45,7 +45,7 @@
       yield message
       // message will be done in the case of chat and generate
       // message will be success in the case of a progress response (pull, push, create)
       if ((message as any).done || (message as any).status === 'success') {
         this.doneCallback()
         return
       }
@@ -171,7 +171,7 @@
   data?: Record<string, unknown> | BodyInit,
   options?: { signal: AbortSignal },
 ): Promise<Response> => {
   const isRecord = (input: any): input is Record<string, unknown> => {
     return input !== null && typeof input === 'object' && !Array.isArray(input)
   }
 
@@ -266,7 +266,7 @@
   if (host.startsWith(':')) {
     // if host starts with ':', prepend the default hostname
     host = `http://127.0.0.1${host}`
-    isExplicitProtocol = false
+    isExplicitProtocol = true
   }
 
   if (!isExplicitProtocol) {

test/index.spec.ts

@@ -13,6 +13,10 @@ describe('formatHost Function Tests', () => {
     expect(formatHost('1.2.3.4:56789')).toBe('http://1.2.3.4:56789')
   })
 
+  it('should parse with only a port', () => {
+    expect(formatHost(':56789')).toBe('http://127.0.0.1:56789')
+  })
+
   it('should parse HTTP URL', () => {
     expect(formatHost('http://1.2.3.4')).toBe('http://1.2.3.4:80')
   })
@@ -52,4 +56,8 @@ describe('formatHost Function Tests', () => {
   it('should handle trailing slash in domain with port', () => {
     expect(formatHost('example.com:56789/')).toBe('http://example.com:56789')
   })
+
+  it('should handle traling slash with only a port', () => {
+    expect(formatHost(':56789/')).toBe('http://127.0.0.1:56789')
+  })
 })